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| author | Alex Chiang <achiang@hp.com> | 2009-12-20 12:19:39 -0700 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-12-22 03:24:14 -0500 |
| commit | 3b407aef573b82139c3bc4dcaad2731fad56c054 (patch) | |
| tree | 607a23308ee315ef60c23bd1e2d36acc95d2195b | |
| parent | 47817254b8637b56730aec26eed2c337d3938bb5 (diff) | |
| download | linux-stable-3b407aef573b82139c3bc4dcaad2731fad56c054.tar.gz linux-stable-3b407aef573b82139c3bc4dcaad2731fad56c054.tar.bz2 linux-stable-3b407aef573b82139c3bc4dcaad2731fad56c054.zip | |
ACPI: processor: introduce acpi_processor_alloc_pdc()
acpi_processor_init_pdc() isn't really doing anything interesting
with the struct acpi_processor * parameter. Its real job is to allocate
the buffer for the _PDC bits.
So rename the function to acpi_processor_alloc_pdc(), and just return
the struct acpi_object_list * it's supposed to allocate.
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | drivers/acpi/processor_pdc.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/acpi/processor_pdc.c b/drivers/acpi/processor_pdc.c index e786e2ce1882..23d2828157e0 100644 --- a/drivers/acpi/processor_pdc.c +++ b/drivers/acpi/processor_pdc.c @@ -54,26 +54,24 @@ static void acpi_set_pdc_bits(u32 *buf) arch_acpi_set_pdc_bits(buf); } -static void acpi_processor_init_pdc(struct acpi_processor *pr) +static struct acpi_object_list *acpi_processor_alloc_pdc(void) { struct acpi_object_list *obj_list; union acpi_object *obj; u32 *buf; - pr->pdc = NULL; - /* allocate and initialize pdc. It will be used later. */ obj_list = kmalloc(sizeof(struct acpi_object_list), GFP_KERNEL); if (!obj_list) { printk(KERN_ERR "Memory allocation error\n"); - return; + return NULL; } obj = kmalloc(sizeof(union acpi_object), GFP_KERNEL); if (!obj) { printk(KERN_ERR "Memory allocation error\n"); kfree(obj_list); - return; + return NULL; } buf = kmalloc(12, GFP_KERNEL); @@ -81,7 +79,7 @@ static void acpi_processor_init_pdc(struct acpi_processor *pr) printk(KERN_ERR "Memory allocation error\n"); kfree(obj); kfree(obj_list); - return; + return NULL; } acpi_set_pdc_bits(buf); @@ -91,9 +89,8 @@ static void acpi_processor_init_pdc(struct acpi_processor *pr) obj->buffer.pointer = (u8 *) buf; obj_list->count = 1; obj_list->pointer = obj; - pr->pdc = obj_list; - return; + return obj_list; } /* @@ -142,10 +139,17 @@ static void acpi_processor_cleanup_pdc(struct acpi_processor *pr) void acpi_processor_set_pdc(struct acpi_processor *pr) { + struct acpi_object_list *obj_list; + if (arch_has_acpi_pdc() == false) return; - acpi_processor_init_pdc(pr); + obj_list = acpi_processor_alloc_pdc(); + if (!obj_list) + return; + + pr->pdc = obj_list; + acpi_processor_eval_pdc(pr); acpi_processor_cleanup_pdc(pr); } |