Merge branch 'misc-2.6.33' into release

10 files changed, 423 insertions, 304 deletions

diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 85844d053846..56c6374a3989 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -40,7 +40,6 @@ config ATA_VERBOSE_ERROR
 config ATA_ACPI
 	bool "ATA ACPI Support"
 	depends on ACPI && PCI
-	select ACPI_DOCK
 	default y
 	help
 	  This option adds support for ATA-related ACPI objects.
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 454970d2d701..07d14dfdf0b4 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -96,9 +96,6 @@ struct acer_quirks {
 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
 MODULE_ALIAS("wmi:6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3");
 
-/* Temporary workaround until the WMI sysfs interface goes in */
-MODULE_ALIAS("dmi:*:*Acer*:*:");
-
 /*
  * Interface capability flags
  */
diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index 79b15b9d9cf0..7b2384d674d0 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -52,7 +52,7 @@
  */
 #undef START_IN_KERNEL_MODE
 
-#define DRV_VER "0.5.20"
+#define DRV_VER "0.5.22"
 
 /*
  * According to the Atom N270 datasheet,
@@ -156,19 +156,25 @@ static const struct bios_settings_t bios_tbl[] = {
 	{"Acer", "AOA150", "v0.3310", 0x55, 0x58, {0x20, 0x20, 0x00} },
 	/* Acer 1410 */
 	{"Acer", "Aspire 1410", "v0.3120", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
-	/* special BIOS / other */
+	{"Acer", "Aspire 1410", "v1.3303", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
+	/* Acer 1810xx */
+	{"Acer", "Aspire 1810TZ", "v0.3120", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
+	{"Acer", "Aspire 1810T", "v0.3120", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
+	{"Acer", "Aspire 1810T", "v1.3303", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
+	{"Acer", "Aspire 1810TZ", "v1.3303", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
+	/* Gateway */
 	{"Gateway", "AOA110", "v0.3103", 0x55, 0x58, {0x21, 0x21, 0x00} },
 	{"Gateway", "AOA150", "v0.3103", 0x55, 0x58, {0x20, 0x20, 0x00} },
-	{"Gateway         ", "LT31            ", "v1.3103 ", 0x55, 0x58,
-		{0x10, 0x0f, 0x00} },
-	{"Gateway         ", "LT31            ", "v1.3201 ", 0x55, 0x58,
-		{0x10, 0x0f, 0x00} },
-	{"Gateway         ", "LT31            ", "v1.3302 ", 0x55, 0x58,
-		{0x10, 0x0f, 0x00} },
+	{"Gateway", "LT31", "v1.3103", 0x55, 0x58, {0x10, 0x0f, 0x00} },
+	{"Gateway", "LT31", "v1.3201", 0x55, 0x58, {0x10, 0x0f, 0x00} },
+	{"Gateway", "LT31", "v1.3302", 0x55, 0x58, {0x10, 0x0f, 0x00} },
+	/* Packard Bell */
 	{"Packard Bell", "DOA150", "v0.3104", 0x55, 0x58, {0x21, 0x21, 0x00} },
 	{"Packard Bell", "DOA150", "v0.3105", 0x55, 0x58, {0x20, 0x20, 0x00} },
 	{"Packard Bell", "AOA110", "v0.3105", 0x55, 0x58, {0x21, 0x21, 0x00} },
 	{"Packard Bell", "AOA150", "v0.3105", 0x55, 0x58, {0x20, 0x20, 0x00} },
+	{"Packard Bell", "DOTMU", "v1.3303", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
+	{"Packard Bell", "DOTMU", "v0.3120", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
 	/* pewpew-terminator */
 	{"", "", "", 0, 0, {0, 0, 0} }
 };
@@ -486,13 +492,26 @@ static struct platform_driver acerhdf_driver = {
 	.remove = acerhdf_remove,
 };
 
+/* checks if str begins with start */
+static int str_starts_with(const char *str, const char *start)
+{
+	unsigned long str_len = 0, start_len = 0;
+
+	str_len = strlen(str);
+	start_len = strlen(start);
+
+	if (str_len >= start_len &&
+			!strncmp(str, start, start_len))
+		return 1;
+
+	return 0;
+}
 
 /* check hardware */
 static int acerhdf_check_hardware(void)
 {
 	char const *vendor, *version, *product;
-	int i;
-	unsigned long prod_len = 0;
+	const struct bios_settings_t *bt = NULL;
 
 	/* get BIOS data */
 	vendor  = dmi_get_system_info(DMI_SYS_VENDOR);
@@ -514,20 +533,20 @@ static int acerhdf_check_hardware(void)
 		kernelmode = 0;
 	}
 
-	prod_len = strlen(product);
-
 	if (verbose)
 		pr_info("BIOS info: %s %s, product: %s\n",
 			vendor, version, product);
 
 	/* search BIOS version and vendor in BIOS settings table */
-	for (i = 0; bios_tbl[i].version[0]; i++) {
-		if (strlen(bios_tbl[i].product) >= prod_len &&
-		    !strncmp(bios_tbl[i].product, product,
-			   strlen(bios_tbl[i].product)) &&
-		    !strcmp(bios_tbl[i].vendor, vendor) &&
-		    !strcmp(bios_tbl[i].version, version)) {
-			bios_cfg = &bios_tbl[i];
+	for (bt = bios_tbl; bt->vendor[0]; bt++) {
+		/*
+		 * check if actual hardware BIOS vendor, product and version
+		 * IDs start with the strings of BIOS table entry
+		 */
+		if (str_starts_with(vendor, bt->vendor) &&
+				str_starts_with(product, bt->product) &&
+				str_starts_with(version, bt->version)) {
+			bios_cfg = bt;
 			break;
 		}
 	}
@@ -640,9 +659,14 @@ static void __exit acerhdf_exit(void)
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Peter Feuerer");
 MODULE_DESCRIPTION("Aspire One temperature and fan driver");
-MODULE_ALIAS("dmi:*:*Acer*:*:");
-MODULE_ALIAS("dmi:*:*Gateway*:*:");
-MODULE_ALIAS("dmi:*:*Packard Bell*:*:");
+MODULE_ALIAS("dmi:*:*Acer*:pnAOA*:");
+MODULE_ALIAS("dmi:*:*Acer*:pnAspire 1410*:");
+MODULE_ALIAS("dmi:*:*Acer*:pnAspire 1810*:");
+MODULE_ALIAS("dmi:*:*Gateway*:pnAOA*:");
+MODULE_ALIAS("dmi:*:*Gateway*:pnLT31*:");
+MODULE_ALIAS("dmi:*:*Packard Bell*:pnAOA*:");
+MODULE_ALIAS("dmi:*:*Packard Bell*:pnDOA*:");
+MODULE_ALIAS("dmi:*:*Packard Bell*:pnDOTMU*:");
 
 module_init(acerhdf_init);
 module_exit(acerhdf_exit);
diff --git a/drivers/platform/x86/asus_acpi.c b/drivers/platform/x86/asus_acpi.c
index 0c9c53111a22..c1d2aeeea948 100644
--- a/drivers/platform/x86/asus_acpi.c
+++ b/drivers/platform/x86/asus_acpi.c
@@ -35,6 +35,7 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/backlight.h>
 #include <acpi/acpi_drivers.h>
 #include <acpi/acpi_bus.h>
@@ -513,26 +514,12 @@ static int read_acpi_int(acpi_handle handle, const char *method, int *val)
 	return (status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER);
 }
 
-/*
- * We write our info in page, we begin at offset off and cannot write more
- * than count bytes. We set eof to 1 if we handle those 2 values. We return the
- * number of bytes written in page
- */
-static int
-proc_read_info(char *page, char **start, off_t off, int count, int *eof,
-	       void *data)
+static int asus_info_proc_show(struct seq_file *m, void *v)
 {
-	int len = 0;
 	int temp;
-	char buf[16];		/* enough for all info */
-	/*
-	 * We use the easy way, we don't care of off and count,
-	 * so we don't set eof to 1
-	 */
 
-	len += sprintf(page, ACPI_HOTK_NAME " " ASUS_ACPI_VERSION "\n");
-	len += sprintf(page + len, "Model reference    : %s\n",
-		       hotk->methods->name);
+	seq_printf(m, ACPI_HOTK_NAME " " ASUS_ACPI_VERSION "\n");
+	seq_printf(m, "Model reference    : %s\n", hotk->methods->name);
 	/*
 	 * The SFUN method probably allows the original driver to get the list
 	 * of features supported by a given model. For now, 0x0100 or 0x0800
@@ -540,8 +527,7 @@ proc_read_info(char *page, char **start, off_t off, int count, int *eof,
 	 * The significance of others is yet to be found.
 	 */
 	if (read_acpi_int(hotk->handle, "SFUN", &temp))
-		len +=
-		    sprintf(page + len, "SFUN value         : 0x%04x\n", temp);
+		seq_printf(m, "SFUN value         : 0x%04x\n", temp);
 	/*
 	 * Another value for userspace: the ASYM method returns 0x02 for
 	 * battery low and 0x04 for battery critical, its readings tend to be
@@ -550,30 +536,34 @@ proc_read_info(char *page, char **start, off_t off, int count, int *eof,
 	 * silently ignored.
 	 */
 	if (read_acpi_int(hotk->handle, "ASYM", &temp))
-		len +=
-		    sprintf(page + len, "ASYM value         : 0x%04x\n", temp);
+		seq_printf(m, "ASYM value         : 0x%04x\n", temp);
 	if (asus_info) {
-		snprintf(buf, 16, "%d", asus_info->length);
-		len += sprintf(page + len, "DSDT length        : %s\n", buf);
-		snprintf(buf, 16, "%d", asus_info->checksum);
-		len += sprintf(page + len, "DSDT checksum      : %s\n", buf);
-		snprintf(buf, 16, "%d", asus_info->revision);
-		len += sprintf(page + len, "DSDT revision      : %s\n", buf);
-		snprintf(buf, 7, "%s", asus_info->oem_id);
-		len += sprintf(page + len, "OEM id             : %s\n", buf);
-		snprintf(buf, 9, "%s", asus_info->oem_table_id);
-		len += sprintf(page + len, "OEM table id       : %s\n", buf);
-		snprintf(buf, 16, "%x", asus_info->oem_revision);
-		len += sprintf(page + len, "OEM revision       : 0x%s\n", buf);
-		snprintf(buf, 5, "%s", asus_info->asl_compiler_id);
-		len += sprintf(page + len, "ASL comp vendor id : %s\n", buf);
-		snprintf(buf, 16, "%x", asus_info->asl_compiler_revision);
-		len += sprintf(page + len, "ASL comp revision  : 0x%s\n", buf);
+		seq_printf(m, "DSDT length        : %d\n", asus_info->length);
+		seq_printf(m, "DSDT checksum      : %d\n", asus_info->checksum);
+		seq_printf(m, "DSDT revision      : %d\n", asus_info->revision);
+		seq_printf(m, "OEM id             : %.*s\n", ACPI_OEM_ID_SIZE, asus_info->oem_id);
+		seq_printf(m, "OEM table id       : %.*s\n", ACPI_OEM_TABLE_ID_SIZE, asus_info->oem_table_id);
+		seq_printf(m, "OEM revision       : 0x%x\n", asus_info->oem_revision);
+		seq_printf(m, "ASL comp vendor id : %.*s\n", ACPI_NAME_SIZE, asus_info->asl_compiler_id);
+		seq_printf(m, "ASL comp revision  : 0x%x\n", asus_info->asl_compiler_revision);
 	}
 
-	return len;
+	return 0;
+}
+
+static int asus_info_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, asus_info_proc_show, NULL);
 }
 
+static const struct file_operations asus_info_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= asus_info_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 /*
  * /proc handlers
  * We write our info in page, we begin at offset off and cannot write more
@@ -639,34 +629,48 @@ write_led(const char __user *buffer, unsigned long count,
 /*
  * Proc handlers for MLED
  */
-static int
-proc_read_mled(char *page, char **start, off_t off, int count, int *eof,
-	       void *data)
+static int mled_proc_show(struct seq_file *m, void *v)
 {
-	return sprintf(page, "%d\n",
-		       read_led(hotk->methods->mled_status, MLED_ON));
+	seq_printf(m, "%d\n", read_led(hotk->methods->mled_status, MLED_ON));
+	return 0;
 }
 
-static int
-proc_write_mled(struct file *file, const char __user *buffer,
-		unsigned long count, void *data)
+static int mled_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, mled_proc_show, NULL);
+}
+
+static ssize_t mled_proc_write(struct file *file, const char __user *buffer,
+		size_t count, loff_t *pos)
 {
 	return write_led(buffer, count, hotk->methods->mt_mled, MLED_ON, 1);
 }
 
+static const struct file_operations mled_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= mled_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= mled_proc_write,
+};
+
 /*
  * Proc handlers for LED display
  */
-static int
-proc_read_ledd(char *page, char **start, off_t off, int count, int *eof,
-	       void *data)
+static int ledd_proc_show(struct seq_file *m, void *v)
 {
-	return sprintf(page, "0x%08x\n", hotk->ledd_status);
+	seq_printf(m, "0x%08x\n", hotk->ledd_status);
+	return 0;
 }
 
-static int
-proc_write_ledd(struct file *file, const char __user *buffer,
-		unsigned long count, void *data)
+static int ledd_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, ledd_proc_show, NULL);
+}
+
+static ssize_t ledd_proc_write(struct file *file, const char __user *buffer,
+		size_t count, loff_t *pos)
 {
 	int rv, value;
 
@@ -682,61 +686,104 @@ proc_write_ledd(struct file *file, const char __user *buffer,
 	return rv;
 }
 
+static const struct file_operations ledd_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= ledd_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= ledd_proc_write,
+};
+
 /*
  * Proc handlers for WLED
  */
-static int
-proc_read_wled(char *page, char **start, off_t off, int count, int *eof,
-	       void *data)
+static int wled_proc_show(struct seq_file *m, void *v)
 {
-	return sprintf(page, "%d\n",
-		       read_led(hotk->methods->wled_status, WLED_ON));
+	seq_printf(m, "%d\n", read_led(hotk->methods->wled_status, WLED_ON));
+	return 0;
 }
 
-static int
-proc_write_wled(struct file *file, const char __user *buffer,
-		unsigned long count, void *data)
+static int wled_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, wled_proc_show, NULL);
+}
+
+static ssize_t wled_proc_write(struct file *file, const char __user *buffer,
+		size_t count, loff_t *pos)
 {
 	return write_led(buffer, count, hotk->methods->mt_wled, WLED_ON, 0);
 }
 
+static const struct file_operations wled_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= wled_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= wled_proc_write,
+};
+
 /*
  * Proc handlers for Bluetooth
  */
-static int
-proc_read_bluetooth(char *page, char **start, off_t off, int count, int *eof,
-		    void *data)
+static int bluetooth_proc_show(struct seq_file *m, void *v)
 {
-	return sprintf(page, "%d\n", read_led(hotk->methods->bt_status, BT_ON));
+	seq_printf(m, "%d\n", read_led(hotk->methods->bt_status, BT_ON));
+	return 0;
 }
 
-static int
-proc_write_bluetooth(struct file *file, const char __user *buffer,
-		     unsigned long count, void *data)
+static int bluetooth_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, bluetooth_proc_show, NULL);
+}
+
+static ssize_t bluetooth_proc_write(struct file *file,
+		const char __user *buffer, size_t count, loff_t *pos)
 {
 	/* Note: mt_bt_switch controls both internal Bluetooth adapter's
 	   presence and its LED */
 	return write_led(buffer, count, hotk->methods->mt_bt_switch, BT_ON, 0);
 }
 
+static const struct file_operations bluetooth_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= bluetooth_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= bluetooth_proc_write,
+};
+
 /*
  * Proc handlers for TLED
  */
-static int
-proc_read_tled(char *page, char **start, off_t off, int count, int *eof,
-	       void *data)
+static int tled_proc_show(struct seq_file *m, void *v)
 {
-	return sprintf(page, "%d\n",
-		       read_led(hotk->methods->tled_status, TLED_ON));
+	seq_printf(m, "%d\n", read_led(hotk->methods->tled_status, TLED_ON));
+	return 0;
 }
 
-static int
-proc_write_tled(struct file *file, const char __user *buffer,
-		unsigned long count, void *data)
+static int tled_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, tled_proc_show, NULL);
+}
+
+static ssize_t tled_proc_write(struct file *file, const char __user *buffer,
+		size_t count, loff_t *pos)
 {
 	return write_led(buffer, count, hotk->methods->mt_tled, TLED_ON, 0);
 }
 
+static const struct file_operations tled_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= tled_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= tled_proc_write,
+};
+
 static int get_lcd_state(void)
 {
 	int lcd = 0;
@@ -829,16 +876,19 @@ static int set_lcd_state(int value)
 
 }
 
-static int
-proc_read_lcd(char *page, char **start, off_t off, int count, int *eof,
-	      void *data)
+static int lcd_proc_show(struct seq_file *m, void *v)
 {
-	return sprintf(page, "%d\n", get_lcd_state());
+	seq_printf(m, "%d\n", get_lcd_state());
+	return 0;
 }
 
-static int
-proc_write_lcd(struct file *file, const char __user *buffer,
-	       unsigned long count, void *data)
+static int lcd_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, lcd_proc_show, NULL);
+}
+
+static ssize_t lcd_proc_write(struct file *file, const char __user *buffer,
+	       size_t count, loff_t *pos)
 {
 	int rv, value;
 
@@ -848,6 +898,15 @@ proc_write_lcd(struct file *file, const char __user *buffer,
 	return rv;
 }
 
+static const struct file_operations lcd_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= lcd_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= lcd_proc_write,
+};
+
 static int read_brightness(struct backlight_device *bd)
 {
 	int value;
@@ -907,16 +966,19 @@ static int set_brightness_status(struct backlight_device *bd)
 	return set_brightness(bd->props.brightness);
 }
 
-static int
-proc_read_brn(char *page, char **start, off_t off, int count, int *eof,
-	      void *data)
+static int brn_proc_show(struct seq_file *m, void *v)
 {
-	return sprintf(page, "%d\n", read_brightness(NULL));
+	seq_printf(m, "%d\n", read_brightness(NULL));
+	return 0;
 }
 
-static int
-proc_write_brn(struct file *file, const char __user *buffer,
-	       unsigned long count, void *data)
+static int brn_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, brn_proc_show, NULL);
+}
+
+static ssize_t brn_proc_write(struct file *file, const char __user *buffer,
+	       size_t count, loff_t *pos)
 {
 	int rv, value;
 
@@ -929,6 +991,15 @@ proc_write_brn(struct file *file, const char __user *buffer,
 	return rv;
 }
 
+static const struct file_operations brn_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= brn_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= brn_proc_write,
+};
+
 static void set_display(int value)
 {
 	/* no sanity check needed for now */
@@ -942,9 +1013,7 @@ static void set_display(int value)
  * Now, *this* one could be more user-friendly, but so far, no-one has
  * complained. The significance of bits is the same as in proc_write_disp()
  */
-static int
-proc_read_disp(char *page, char **start, off_t off, int count, int *eof,
-	       void *data)
+static int disp_proc_show(struct seq_file *m, void *v)
 {
 	int value = 0;
 
@@ -952,7 +1021,13 @@ proc_read_disp(char *page, char **start, off_t off, int count, int *eof,
 		printk(KERN_WARNING
 		       "Asus ACPI: Error reading display status\n");
 	value &= 0x07;	/* needed for some models, shouldn't hurt others */
-	return sprintf(page, "%d\n", value);
+	seq_printf(m, "%d\n", value);
+	return 0;
+}
+
+static int disp_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, disp_proc_show, NULL);
 }
 
 /*
@@ -961,9 +1036,8 @@ proc_read_disp(char *page, char **start, off_t off, int count, int *eof,
  * (bitwise) of these will suffice. I never actually tested 3 displays hooked
  * up simultaneously, so be warned. See the acpi4asus README for more info.
  */
-static int
-proc_write_disp(struct file *file, const char __user *buffer,
-		unsigned long count, void *data)
+static ssize_t disp_proc_write(struct file *file, const char __user *buffer,
+		size_t count, loff_t *pos)
 {
 	int rv, value;
 
@@ -973,25 +1047,27 @@ proc_write_disp(struct file *file, const char __user *buffer,
 	return rv;
 }
 
-typedef int (proc_readfunc) (char *page, char **start, off_t off, int count,
-			     int *eof, void *data);
-typedef int (proc_writefunc) (struct file *file, const char __user *buffer,
-			      unsigned long count, void *data);
+static const struct file_operations disp_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= disp_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= disp_proc_write,
+};
 
 static int
-asus_proc_add(char *name, proc_writefunc *writefunc,
-		     proc_readfunc *readfunc, mode_t mode,
+asus_proc_add(char *name, const struct file_operations *proc_fops, mode_t mode,
 		     struct acpi_device *device)
 {
-	struct proc_dir_entry *proc =
-	    create_proc_entry(name, mode, acpi_device_dir(device));
+	struct proc_dir_entry *proc;
+
+	proc = proc_create_data(name, mode, acpi_device_dir(device),
+				proc_fops, acpi_driver_data(device));
 	if (!proc) {
 		printk(KERN_WARNING "  Unable to create %s fs entry\n", name);
 		return -1;
 	}
-	proc->write_proc = writefunc;
-	proc->read_proc = readfunc;
-	proc->data = acpi_driver_data(device);
 	proc->uid = asus_uid;
 	proc->gid = asus_gid;
 	return 0;
@@ -1020,10 +1096,9 @@ static int asus_hotk_add_fs(struct acpi_device *device)
 	if (!acpi_device_dir(device))
 		return -ENODEV;
 
-	proc = create_proc_entry(PROC_INFO, mode, acpi_device_dir(device));
+	proc = proc_create(PROC_INFO, mode, acpi_device_dir(device),
+			   &asus_info_proc_fops);
 	if (proc) {
-		proc->read_proc = proc_read_info;
-		proc->data = acpi_driver_data(device);
 		proc->uid = asus_uid;
 		proc->gid = asus_gid;
 	} else {
@@ -1032,28 +1107,23 @@ static int asus_hotk_add_fs(struct acpi_device *device)
 	}
 
 	if (hotk->methods->mt_wled) {
-		asus_proc_add(PROC_WLED, &proc_write_wled, &proc_read_wled,
-			      mode, device);
+		asus_proc_add(PROC_WLED, &wled_proc_fops, mode, device);
 	}
 
 	if (hotk->methods->mt_ledd) {
-		asus_proc_add(PROC_LEDD, &proc_write_ledd, &proc_read_ledd,
-			      mode, device);
+		asus_proc_add(PROC_LEDD, &ledd_proc_fops, mode, device);
 	}
 
 	if (hotk->methods->mt_mled) {
-		asus_proc_add(PROC_MLED, &proc_write_mled, &proc_read_mled,
-			      mode, device);
+		asus_proc_add(PROC_MLED, &mled_proc_fops, mode, device);
 	}
 
 	if (hotk->methods->mt_tled) {
-		asus_proc_add(PROC_TLED, &proc_write_tled, &proc_read_tled,
-			      mode, device);
+		asus_proc_add(PROC_TLED, &tled_proc_fops, mode, device);
 	}
 
 	if (hotk->methods->mt_bt_switch) {
-		asus_proc_add(PROC_BT, &proc_write_bluetooth,
-			      &proc_read_bluetooth, mode, device);
+		asus_proc_add(PROC_BT, &bluetooth_proc_fops, mode, device);
 	}
 
 	/*
@@ -1061,19 +1131,16 @@ static int asus_hotk_add_fs(struct acpi_device *device)
 	 * accessible from the keyboard
 	 */
 	if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status) {
-		asus_proc_add(PROC_LCD, &proc_write_lcd, &proc_read_lcd, mode,
-			      device);
+		asus_proc_add(PROC_LCD, &lcd_proc_fops, mode, device);
 	}
 
 	if ((hotk->methods->brightness_up && hotk->methods->brightness_down) ||
 	    (hotk->methods->brightness_get && hotk->methods->brightness_set)) {
-		asus_proc_add(PROC_BRN, &proc_write_brn, &proc_read_brn, mode,
-			      device);
+		asus_proc_add(PROC_BRN, &brn_proc_fops, mode, device);
 	}
 
 	if (hotk->methods->display_set) {
-		asus_proc_add(PROC_DISP, &proc_write_disp, &proc_read_disp,
-			      mode, device);
+		asus_proc_add(PROC_DISP, &disp_proc_fops, mode, device);
 	}
 
 	return 0;
diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index 67f3fe71c509..916ccb2b316c 100644
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -238,6 +238,7 @@ static void dell_wmi_notify(u32 value, void *context)
 			input_sync(dell_wmi_input_dev);
 		}
 	}
+	kfree(obj);
 }
 
 
@@ -324,37 +325,34 @@ static int __init dell_wmi_init(void)
 	int err;
 
 	if (wmi_has_guid(DELL_EVENT_GUID)) {
+		printk(KERN_WARNING "dell-wmi: No known WMI GUID found\n");
+		return -ENODEV;
+	}
 
-		dmi_walk(find_hk_type, NULL);
-
-		err = dell_wmi_input_setup();
-
-		if (err)
-			return err;
-
-		err = wmi_install_notify_handler(DELL_EVENT_GUID,
-						 dell_wmi_notify, NULL);
-		if (err) {
-			input_unregister_device(dell_wmi_input_dev);
-			printk(KERN_ERR "dell-wmi: Unable to register"
-			       " notify handler - %d\n", err);
-			return err;
-		}
+	dmi_walk(find_hk_type, NULL);
+	acpi_video = acpi_video_backlight_support();
 
-		acpi_video = acpi_video_backlight_support();
+	err = dell_wmi_input_setup();
+	if (err)
+		return err;
 
-	} else
-		printk(KERN_WARNING "dell-wmi: No known WMI GUID found\n");
+	err = wmi_install_notify_handler(DELL_EVENT_GUID,
+					 dell_wmi_notify, NULL);
+	if (err) {
+		input_unregister_device(dell_wmi_input_dev);
+		printk(KERN_ERR
+			"dell-wmi: Unable to register notify handler - %d\n",
+			err);
+		return err;
+	}
 
 	return 0;
 }
 
 static void __exit dell_wmi_exit(void)
 {
-	if (wmi_has_guid(DELL_EVENT_GUID)) {
-		wmi_remove_notify_handler(DELL_EVENT_GUID);
-		input_unregister_device(dell_wmi_input_dev);
-	}
+	wmi_remove_notify_handler(DELL_EVENT_GUID);
+	input_unregister_device(dell_wmi_input_dev);
 }
 
 module_init(dell_wmi_init);
diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index b66029bd75d0..5f3320d468f6 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -376,8 +376,8 @@ static int get_lcd_level(void)
 
 	status =
 	    acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state);
-	if (status < 0)
-		return status;
+	if (ACPI_FAILURE(status))
+		return 0;
 
 	fujitsu->brightness_level = state & 0x0fffffff;
 
@@ -398,8 +398,8 @@ static int get_max_brightness(void)
 
 	status =
 	    acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state);
-	if (status < 0)
-		return status;
+	if (ACPI_FAILURE(status))
+		return -1;
 
 	fujitsu->max_brightness = state;
 
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 63c3e658a884..8781d8fa7a57 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -134,10 +134,15 @@ static int hp_wmi_perform_query(int query, int write, int value)
 
 	obj = output.pointer;
 
-	if (!obj || obj->type != ACPI_TYPE_BUFFER)
+	if (!obj)
 		return -EINVAL;
+	else if (obj->type != ACPI_TYPE_BUFFER) {
+		kfree(obj);
+		return -EINVAL;
+	}
 
 	bios_return = *((struct bios_return *)obj->buffer.pointer);
+	kfree(obj);
 	if (bios_return.return_code > 0)
 		return bios_return.return_code * -1;
 	else
@@ -340,10 +345,12 @@ static void hp_wmi_notify(u32 value, void *context)
 
 	if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length != 8) {
 		printk(KERN_INFO "HP WMI: Unknown response received\n");
+		kfree(obj);
 		return;
 	}
 
 	eventcode = *((u8 *) obj->buffer.pointer);
+	kfree(obj);
 	if (eventcode == 0x4)
 		eventcode = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
 						0);
@@ -381,6 +388,8 @@ static void hp_wmi_notify(u32 value, void *context)
 	} else
 		printk(KERN_INFO "HP WMI: Unknown key pressed - %x\n",
 			eventcode);
+
+	kfree(obj);
 }
 
 static int __init hp_wmi_input_setup(void)
diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
index 0c8fe145c4af..7f77f908bb01 100644
--- a/drivers/platform/x86/msi-wmi.c
+++ b/drivers/platform/x86/msi-wmi.c
@@ -34,16 +34,6 @@ MODULE_LICENSE("GPL");
 MODULE_ALIAS("wmi:551A1F84-FBDD-4125-91DB-3EA8F44F1D45");
 MODULE_ALIAS("wmi:B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2");
 
-/* Temporary workaround until the WMI sysfs interface goes in
-		{ "svn", DMI_SYS_VENDOR },
-		{ "pn",  DMI_PRODUCT_NAME },
-		{ "pvr", DMI_PRODUCT_VERSION },
-		{ "rvn", DMI_BOARD_VENDOR },
-		{ "rn",  DMI_BOARD_NAME },
-*/
-
-MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-6638:*");
-
 #define DRV_NAME "msi-wmi"
 #define DRV_PFX DRV_NAME ": "
 
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 51c0a8bee414..77bf5d8f893a 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -42,6 +42,7 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/backlight.h>
 #include <linux/platform_device.h>
 #include <linux/rfkill.h>
@@ -357,63 +358,6 @@ static int force_fan;
 static int last_key_event;
 static int key_event_valid;
 
-typedef struct _ProcItem {
-	const char *name;
-	char *(*read_func) (char *);
-	unsigned long (*write_func) (const char *, unsigned long);
-} ProcItem;
-
-/* proc file handlers
- */
-
-static int
-dispatch_read(char *page, char **start, off_t off, int count, int *eof,
-	      ProcItem * item)
-{
-	char *p = page;
-	int len;
-
-	if (off == 0)
-		p = item->read_func(p);
-
-	/* ISSUE: I don't understand this code */
-	len = (p - page);
-	if (len <= off + count)
-		*eof = 1;
-	*start = page + off;
-	len -= off;
-	if (len > count)
-		len = count;
-	if (len < 0)
-		len = 0;
-	return len;
-}
-
-static int
-dispatch_write(struct file *file, const char __user * buffer,
-	       unsigned long count, ProcItem * item)
-{
-	int result;
-	char *tmp_buffer;
-
-	/* Arg buffer points to userspace memory, which can't be accessed
-	 * directly.  Since we're making a copy, zero-terminate the
-	 * destination so that sscanf can be used on it safely.
-	 */
-	tmp_buffer = kmalloc(count + 1, GFP_KERNEL);
-	if (!tmp_buffer)
-		return -ENOMEM;
-
-	if (copy_from_user(tmp_buffer, buffer, count)) {
-		result = -EFAULT;
-	} else {
-		tmp_buffer[count] = 0;
-		result = item->write_func(tmp_buffer, count);
-	}
-	kfree(tmp_buffer);
-	return result;
-}
-
 static int get_lcd(struct backlight_device *bd)
 {
 	u32 hci_result;
@@ -426,19 +370,24 @@ static int get_lcd(struct backlight_device *bd)
 		return -EFAULT;
 }
 
-static char *read_lcd(char *p)
+static int lcd_proc_show(struct seq_file *m, void *v)
 {
 	int value = get_lcd(NULL);
 
 	if (value >= 0) {
-		p += sprintf(p, "brightness:              %d\n", value);
-		p += sprintf(p, "brightness_levels:       %d\n",
+		seq_printf(m, "brightness:              %d\n", value);
+		seq_printf(m, "brightness_levels:       %d\n",
 			     HCI_LCD_BRIGHTNESS_LEVELS);
 	} else {
 		printk(MY_ERR "Error reading LCD brightness\n");
 	}
 
-	return p;
+	return 0;
+}
+
+static int lcd_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, lcd_proc_show, NULL);
 }
 
 static int set_lcd(int value)
@@ -458,12 +407,20 @@ static int set_lcd_status(struct backlight_device *bd)
 	return set_lcd(bd->props.brightness);
 }
 
-static unsigned long write_lcd(const char *buffer, unsigned long count)
+static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
+			      size_t count, loff_t *pos)
 {
+	char cmd[42];
+	size_t len;
 	int value;
 	int ret;
 
-	if (sscanf(buffer, " brightness : %i", &value) == 1 &&
+	len = min(count, sizeof(cmd) - 1);
+	if (copy_from_user(cmd, buf, len))
+		return -EFAULT;
+	cmd[len] = '\0';
+
+	if (sscanf(cmd, " brightness : %i", &value) == 1 &&
 	    value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS) {
 		ret = set_lcd(value);
 		if (ret == 0)
@@ -474,7 +431,16 @@ static unsigned long write_lcd(const char *buffer, unsigned long count)
 	return ret;
 }
 
-static char *read_video(char *p)
+static const struct file_operations lcd_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= lcd_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= lcd_proc_write,
+};
+
+static int video_proc_show(struct seq_file *m, void *v)
 {
 	u32 hci_result;
 	u32 value;
@@ -484,18 +450,25 @@ static char *read_video(char *p)
 		int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
 		int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
 		int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
-		p += sprintf(p, "lcd_out:                 %d\n", is_lcd);
-		p += sprintf(p, "crt_out:                 %d\n", is_crt);
-		p += sprintf(p, "tv_out:                  %d\n", is_tv);
+		seq_printf(m, "lcd_out:                 %d\n", is_lcd);
+		seq_printf(m, "crt_out:                 %d\n", is_crt);
+		seq_printf(m, "tv_out:                  %d\n", is_tv);
 	} else {
 		printk(MY_ERR "Error reading video out status\n");
 	}
 
-	return p;
+	return 0;
 }
 
-static unsigned long write_video(const char *buffer, unsigned long count)
+static int video_proc_open(struct inode *inode, struct file *file)
 {
+	return single_open(file, video_proc_show, NULL);
+}
+
+static ssize_t video_proc_write(struct file *file, const char __user *buf,
+				size_t count, loff_t *pos)
+{
+	char *cmd, *buffer;
 	int value;
 	int remain = count;
 	int lcd_out = -1;
@@ -504,6 +477,17 @@ static unsigned long write_video(const char *buffer, unsigned long count)
 	u32 hci_result;
 	u32 video_out;
 
+	cmd = kmalloc(count + 1, GFP_KERNEL);
+	if (!cmd)
+		return -ENOMEM;
+	if (copy_from_user(cmd, buf, count)) {
+		kfree(cmd);
+		return -EFAULT;
+	}
+	cmd[count] = '\0';
+
+	buffer = cmd;
+
 	/* scan expression.  Multiple expressions may be delimited with ;
 	 *
 	 *  NOTE: to keep scanning simple, invalid fields are ignored
@@ -523,6 +507,8 @@ static unsigned long write_video(const char *buffer, unsigned long count)
 		while (remain && *(buffer - 1) != ';');
 	}
 
+	kfree(cmd);
+
 	hci_read1(HCI_VIDEO_OUT, &video_out, &hci_result);
 	if (hci_result == HCI_SUCCESS) {
 		unsigned int new_video_out = video_out;
@@ -543,28 +529,50 @@ static unsigned long write_video(const char *buffer, unsigned long count)
 	return count;
 }
 
-static char *read_fan(char *p)
+static const struct file_operations video_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= video_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= video_proc_write,
+};
+
+static int fan_proc_show(struct seq_file *m, void *v)
 {
 	u32 hci_result;
 	u32 value;
 
 	hci_read1(HCI_FAN, &value, &hci_result);
 	if (hci_result == HCI_SUCCESS) {
-		p += sprintf(p, "running:                 %d\n", (value > 0));
-		p += sprintf(p, "force_on:                %d\n", force_fan);
+		seq_printf(m, "running:                 %d\n", (value > 0));
+		seq_printf(m, "force_on:                %d\n", force_fan);
 	} else {
 		printk(MY_ERR "Error reading fan status\n");
 	}
 
-	return p;
+	return 0;
+}
+
+static int fan_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, fan_proc_show, NULL);
 }
 
-static unsigned long write_fan(const char *buffer, unsigned long count)
+static ssize_t fan_proc_write(struct file *file, const char __user *buf,
+			      size_t count, loff_t *pos)
 {
+	char cmd[42];
+	size_t len;
 	int value;
 	u32 hci_result;
 
-	if (sscanf(buffer, " force_on : %i", &value) == 1 &&
+	len = min(count, sizeof(cmd) - 1);
+	if (copy_from_user(cmd, buf, len))
+		return -EFAULT;
+	cmd[len] = '\0';
+
+	if (sscanf(cmd, " force_on : %i", &value) == 1 &&
 	    value >= 0 && value <= 1) {
 		hci_write1(HCI_FAN, value, &hci_result);
 		if (hci_result != HCI_SUCCESS)
@@ -578,7 +586,16 @@ static unsigned long write_fan(const char *buffer, unsigned long count)
 	return count;
 }
 
-static char *read_keys(char *p)
+static const struct file_operations fan_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= fan_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= fan_proc_write,
+};
+
+static int keys_proc_show(struct seq_file *m, void *v)
 {
 	u32 hci_result;
 	u32 value;
@@ -602,18 +619,30 @@ static char *read_keys(char *p)
 		}
 	}
 
-	p += sprintf(p, "hotkey_ready:            %d\n", key_event_valid);
-	p += sprintf(p, "hotkey:                  0x%04x\n", last_key_event);
+	seq_printf(m, "hotkey_ready:            %d\n", key_event_valid);
+	seq_printf(m, "hotkey:                  0x%04x\n", last_key_event);
+end:
+	return 0;
+}
 
-      end:
-	return p;
+static int keys_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, keys_proc_show, NULL);
 }
 
-static unsigned long write_keys(const char *buffer, unsigned long count)
+static ssize_t keys_proc_write(struct file *file, const char __user *buf,
+			       size_t count, loff_t *pos)
 {
+	char cmd[42];
+	size_t len;
 	int value;
 
-	if (sscanf(buffer, " hotkey_ready : %i", &value) == 1 && value == 0) {
+	len = min(count, sizeof(cmd) - 1);
+	if (copy_from_user(cmd, buf, len))
+		return -EFAULT;
+	cmd[len] = '\0';
+
+	if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) {
 		key_event_valid = 0;
 	} else {
 		return -EINVAL;
@@ -622,52 +651,58 @@ static unsigned long write_keys(const char *buffer, unsigned long count)
 	return count;
 }
 
-static char *read_version(char *p)
+static const struct file_operations keys_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= keys_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= keys_proc_write,
+};
+
+static int version_proc_show(struct seq_file *m, void *v)
 {
-	p += sprintf(p, "driver:                  %s\n", TOSHIBA_ACPI_VERSION);
-	p += sprintf(p, "proc_interface:          %d\n",
-		     PROC_INTERFACE_VERSION);
-	return p;
+	seq_printf(m, "driver:                  %s\n", TOSHIBA_ACPI_VERSION);
+	seq_printf(m, "proc_interface:          %d\n", PROC_INTERFACE_VERSION);
+	return 0;
 }
 
+static int version_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, version_proc_show, PDE(inode)->data);
+}
+
+static const struct file_operations version_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= version_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 /* proc and module init
  */
 
 #define PROC_TOSHIBA		"toshiba"
 
-static ProcItem proc_items[] = {
-	{"lcd", read_lcd, write_lcd},
-	{"video", read_video, write_video},
-	{"fan", read_fan, write_fan},
-	{"keys", read_keys, write_keys},
-	{"version", read_version, NULL},
-	{NULL}
-};
-
 static acpi_status __init add_device(void)
 {
-	struct proc_dir_entry *proc;
-	ProcItem *item;
-
-	for (item = proc_items; item->name; ++item) {
-		proc = create_proc_read_entry(item->name,
-					      S_IFREG | S_IRUGO | S_IWUSR,
-					      toshiba_proc_dir,
-					      (read_proc_t *) dispatch_read,
-					      item);
-		if (proc && item->write_func)
-			proc->write_proc = (write_proc_t *) dispatch_write;
-	}
+	proc_create("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir, &lcd_proc_fops);
+	proc_create("video", S_IRUGO | S_IWUSR, toshiba_proc_dir, &video_proc_fops);
+	proc_create("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir, &fan_proc_fops);
+	proc_create("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir, &keys_proc_fops);
+	proc_create("version", S_IRUGO, toshiba_proc_dir, &version_proc_fops);
 
 	return AE_OK;
 }
 
 static acpi_status remove_device(void)
 {
-	ProcItem *item;
-
-	for (item = proc_items; item->name; ++item)
-		remove_proc_entry(item->name, toshiba_proc_dir);
+	remove_proc_entry("lcd", toshiba_proc_dir);
+	remove_proc_entry("video", toshiba_proc_dir);
+	remove_proc_entry("fan", toshiba_proc_dir);
+	remove_proc_entry("keys", toshiba_proc_dir);
+	remove_proc_entry("version", toshiba_proc_dir);
 	return AE_OK;
 }
 
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index e425a868cd3a..9f93d6c0f510 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -540,8 +540,8 @@ EXPORT_SYMBOL_GPL(wmi_remove_notify_handler);
 /**
  * wmi_get_event_data - Get WMI data associated with an event
  *
- * @event - Event to find
- * &out - Buffer to hold event data
+ * @event: Event to find
+ * @out: Buffer to hold event data. out->pointer should be freed with kfree()
  *
  * Returns extra data associated with an event in WMI.
  */