summaryrefslogtreecommitdiffstats
path: root/drivers/char
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/agp/intel-agp.c8
-rw-r--r--drivers/char/hvc_iucv.c2
-rw-r--r--drivers/char/hw_random/amd-rng.c4
-rw-r--r--drivers/char/hw_random/geode-rng.c3
-rw-r--r--drivers/char/mem.c1
-rw-r--r--drivers/char/n_tty.c3
-rw-r--r--drivers/char/pty.c12
-rw-r--r--drivers/char/random.c14
-rw-r--r--drivers/char/sysrq.c19
-rw-r--r--drivers/char/tpm/tpm_tis.c12
-rw-r--r--drivers/char/tty_ldisc.c10
11 files changed, 57 insertions, 31 deletions
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index 8c9d50db5c3a..c58557790585 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -49,6 +49,7 @@
#define PCI_DEVICE_ID_INTEL_IGDNG_D_HB 0x0040
#define PCI_DEVICE_ID_INTEL_IGDNG_D_IG 0x0042
#define PCI_DEVICE_ID_INTEL_IGDNG_M_HB 0x0044
+#define PCI_DEVICE_ID_INTEL_IGDNG_MA_HB 0x0062
#define PCI_DEVICE_ID_INTEL_IGDNG_M_IG 0x0046
/* cover 915 and 945 variants */
@@ -81,7 +82,8 @@
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_GM45_HB || \
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_G41_HB || \
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDNG_D_HB || \
- agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDNG_M_HB)
+ agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDNG_M_HB || \
+ agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDNG_MA_HB)
extern int agp_memory_reserved;
@@ -1216,6 +1218,7 @@ static void intel_i965_get_gtt_range(int *gtt_offset, int *gtt_size)
case PCI_DEVICE_ID_INTEL_G41_HB:
case PCI_DEVICE_ID_INTEL_IGDNG_D_HB:
case PCI_DEVICE_ID_INTEL_IGDNG_M_HB:
+ case PCI_DEVICE_ID_INTEL_IGDNG_MA_HB:
*gtt_offset = *gtt_size = MB(2);
break;
default:
@@ -2195,6 +2198,8 @@ static const struct intel_driver_description {
"IGDNG/D", NULL, &intel_i965_driver },
{ PCI_DEVICE_ID_INTEL_IGDNG_M_HB, PCI_DEVICE_ID_INTEL_IGDNG_M_IG, 0,
"IGDNG/M", NULL, &intel_i965_driver },
+ { PCI_DEVICE_ID_INTEL_IGDNG_MA_HB, PCI_DEVICE_ID_INTEL_IGDNG_M_IG, 0,
+ "IGDNG/MA", NULL, &intel_i965_driver },
{ 0, 0, 0, NULL, NULL, NULL }
};
@@ -2398,6 +2403,7 @@ static struct pci_device_id agp_intel_pci_table[] = {
ID(PCI_DEVICE_ID_INTEL_G41_HB),
ID(PCI_DEVICE_ID_INTEL_IGDNG_D_HB),
ID(PCI_DEVICE_ID_INTEL_IGDNG_M_HB),
+ ID(PCI_DEVICE_ID_INTEL_IGDNG_MA_HB),
{ }
};
diff --git a/drivers/char/hvc_iucv.c b/drivers/char/hvc_iucv.c
index 86105efb4eb6..0ecac7e532f6 100644
--- a/drivers/char/hvc_iucv.c
+++ b/drivers/char/hvc_iucv.c
@@ -1006,7 +1006,7 @@ static int __init hvc_iucv_alloc(int id, unsigned int is_console)
priv->dev->release = (void (*)(struct device *)) kfree;
rc = device_register(priv->dev);
if (rc) {
- kfree(priv->dev);
+ put_device(priv->dev);
goto out_error_dev;
}
diff --git a/drivers/char/hw_random/amd-rng.c b/drivers/char/hw_random/amd-rng.c
index cd0ba51f7c80..0d8c5788b8e4 100644
--- a/drivers/char/hw_random/amd-rng.c
+++ b/drivers/char/hw_random/amd-rng.c
@@ -44,8 +44,8 @@
* want to register another driver on the same PCI id.
*/
static const struct pci_device_id pci_tbl[] = {
- { 0x1022, 0x7443, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
- { 0x1022, 0x746b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
+ { PCI_VDEVICE(AMD, 0x7443), 0, },
+ { PCI_VDEVICE(AMD, 0x746b), 0, },
{ 0, }, /* terminate list */
};
MODULE_DEVICE_TABLE(pci, pci_tbl);
diff --git a/drivers/char/hw_random/geode-rng.c b/drivers/char/hw_random/geode-rng.c
index 64d513f68368..4c4d4e140f98 100644
--- a/drivers/char/hw_random/geode-rng.c
+++ b/drivers/char/hw_random/geode-rng.c
@@ -46,8 +46,7 @@
* want to register another driver on the same PCI id.
*/
static const struct pci_device_id pci_tbl[] = {
- { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_AES,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
+ { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_LX_AES), 0, },
{ 0, }, /* terminate list */
};
MODULE_DEVICE_TABLE(pci, pci_tbl);
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index afa8813e737a..645237bda682 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -822,6 +822,7 @@ static const struct file_operations zero_fops = {
* - permits private mappings, "copies" are taken of the source of zeros
*/
static struct backing_dev_info zero_bdi = {
+ .name = "char/mem",
.capabilities = BDI_CAP_MAP_COPY,
};
diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c
index 973be2f44195..4e28b35024ec 100644
--- a/drivers/char/n_tty.c
+++ b/drivers/char/n_tty.c
@@ -300,8 +300,7 @@ static int do_output_char(unsigned char c, struct tty_struct *tty, int space)
if (space < 2)
return -1;
tty->canon_column = tty->column = 0;
- tty_put_char(tty, '\r');
- tty_put_char(tty, c);
+ tty->ops->write(tty, "\r\n", 2);
return 2;
}
tty->canon_column = tty->column;
diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index 6e6942c45f5b..b33d6688e910 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -109,21 +109,13 @@ static int pty_space(struct tty_struct *to)
* the other side of the pty/tty pair.
*/
-static int pty_write(struct tty_struct *tty, const unsigned char *buf,
- int count)
+static int pty_write(struct tty_struct *tty, const unsigned char *buf, int c)
{
struct tty_struct *to = tty->link;
- int c;
if (tty->stopped)
return 0;
- /* This isn't locked but our 8K is quite sloppy so no
- big deal */
-
- c = pty_space(to);
- if (c > count)
- c = count;
if (c > 0) {
/* Stuff the data into the input queue of the other end */
c = tty_insert_flip_string(to, buf, c);
@@ -144,6 +136,8 @@ static int pty_write(struct tty_struct *tty, const unsigned char *buf,
static int pty_write_room(struct tty_struct *tty)
{
+ if (tty->stopped)
+ return 0;
return pty_space(tty->link);
}
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 8c7444857a4b..d8a9255e1a3f 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -240,6 +240,7 @@
#include <linux/spinlock.h>
#include <linux/percpu.h>
#include <linux/cryptohash.h>
+#include <linux/fips.h>
#ifdef CONFIG_GENERIC_HARDIRQS
# include <linux/irq.h>
@@ -413,6 +414,7 @@ struct entropy_store {
unsigned add_ptr;
int entropy_count;
int input_rotate;
+ __u8 *last_data;
};
static __u32 input_pool_data[INPUT_POOL_WORDS];
@@ -852,12 +854,21 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf,
{
ssize_t ret = 0, i;
__u8 tmp[EXTRACT_SIZE];
+ unsigned long flags;
xfer_secondary_pool(r, nbytes);
nbytes = account(r, nbytes, min, reserved);
while (nbytes) {
extract_buf(r, tmp);
+
+ if (r->last_data) {
+ spin_lock_irqsave(&r->lock, flags);
+ if (!memcmp(tmp, r->last_data, EXTRACT_SIZE))
+ panic("Hardware RNG duplicated output!\n");
+ memcpy(r->last_data, tmp, EXTRACT_SIZE);
+ spin_unlock_irqrestore(&r->lock, flags);
+ }
i = min_t(int, nbytes, EXTRACT_SIZE);
memcpy(buf, tmp, i);
nbytes -= i;
@@ -940,6 +951,9 @@ static void init_std_data(struct entropy_store *r)
now = ktime_get_real();
mix_pool_bytes(r, &now, sizeof(now));
mix_pool_bytes(r, utsname(), sizeof(*(utsname())));
+ /* Enable continuous test in fips mode */
+ if (fips_enabled)
+ r->last_data = kmalloc(EXTRACT_SIZE, GFP_KERNEL);
}
static int rand_initialize(void)
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 5d7a02f63e1c..50eecfe1d724 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -24,6 +24,7 @@
#include <linux/sysrq.h>
#include <linux/kbd_kern.h>
#include <linux/proc_fs.h>
+#include <linux/nmi.h>
#include <linux/quotaops.h>
#include <linux/perf_counter.h>
#include <linux/kernel.h>
@@ -222,12 +223,20 @@ static DECLARE_WORK(sysrq_showallcpus, sysrq_showregs_othercpus);
static void sysrq_handle_showallcpus(int key, struct tty_struct *tty)
{
- struct pt_regs *regs = get_irq_regs();
- if (regs) {
- printk(KERN_INFO "CPU%d:\n", smp_processor_id());
- show_regs(regs);
+ /*
+ * Fall back to the workqueue based printing if the
+ * backtrace printing did not succeed or the
+ * architecture has no support for it:
+ */
+ if (!trigger_all_cpu_backtrace()) {
+ struct pt_regs *regs = get_irq_regs();
+
+ if (regs) {
+ printk(KERN_INFO "CPU%d:\n", smp_processor_id());
+ show_regs(regs);
+ }
+ schedule_work(&sysrq_showallcpus);
}
- schedule_work(&sysrq_showallcpus);
}
static struct sysrq_key_op sysrq_showallcpus_op = {
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index aec1931608aa..0b73e4ec1add 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -450,6 +450,12 @@ static int tpm_tis_init(struct device *dev, resource_size_t start,
goto out_err;
}
+ /* Default timeouts */
+ chip->vendor.timeout_a = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
+ chip->vendor.timeout_b = msecs_to_jiffies(TIS_LONG_TIMEOUT);
+ chip->vendor.timeout_c = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
+ chip->vendor.timeout_d = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
+
if (request_locality(chip, 0) != 0) {
rc = -ENODEV;
goto out_err;
@@ -457,12 +463,6 @@ static int tpm_tis_init(struct device *dev, resource_size_t start,
vendor = ioread32(chip->vendor.iobase + TPM_DID_VID(0));
- /* Default timeouts */
- chip->vendor.timeout_a = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
- chip->vendor.timeout_b = msecs_to_jiffies(TIS_LONG_TIMEOUT);
- chip->vendor.timeout_c = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
- chip->vendor.timeout_d = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
-
dev_info(dev,
"1.2 TPM (device-id 0x%X, rev-id %d)\n",
vendor >> 16, ioread8(chip->vendor.iobase + TPM_RID(0)));
diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c
index 1733d3439ad2..e48af9f79219 100644
--- a/drivers/char/tty_ldisc.c
+++ b/drivers/char/tty_ldisc.c
@@ -508,8 +508,9 @@ static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old)
* be obtained while the delayed work queue halt ensures that no more
* data is fed to the ldisc.
*
- * In order to wait for any existing references to complete see
- * tty_ldisc_wait_idle.
+ * You need to do a 'flush_scheduled_work()' (outside the ldisc_mutex)
+ * in order to make sure any currently executing ldisc work is also
+ * flushed.
*/
static int tty_ldisc_halt(struct tty_struct *tty)
@@ -753,11 +754,14 @@ void tty_ldisc_hangup(struct tty_struct *tty)
* N_TTY.
*/
if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) {
+ /* Make sure the old ldisc is quiescent */
+ tty_ldisc_halt(tty);
+ flush_scheduled_work();
+
/* Avoid racing set_ldisc or tty_ldisc_release */
mutex_lock(&tty->ldisc_mutex);
if (tty->ldisc) { /* Not yet closed */
/* Switch back to N_TTY */
- tty_ldisc_halt(tty);
tty_ldisc_reinit(tty);
/* At this point we have a closed ldisc and we want to
reopen it. We could defer this to the next open but
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-12 00:17:50 +0000