diff options
| author | Sudeep Holla <Sudeep.Holla@arm.com> | 2014-11-25 14:48:50 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-11-25 23:44:52 +0100 |
| commit | 6fd8050a35475259c444afc6856d57f4bbd74231 (patch) | |
| tree | 652d6f6783219e84c79970f8d987f184e75d5f5d /drivers/acpi/processor_idle.c | |
| parent | bccac16eeaa8c2428981891d09380672b229f48b (diff) | |
| download | linux-6fd8050a35475259c444afc6856d57f4bbd74231.tar.gz | |
ACPI / cpuidle: avoid assigning signed errno to acpi_status
It's incorrect to assign a signed value to an unsigned acpi_status
variable. This patch fixes it by using a signed integer to return
error values.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/processor_idle.c')
| -rw-r--r-- | drivers/acpi/processor_idle.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 17f9ec501972e..38472fd5d104a 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -334,10 +334,10 @@ static int acpi_processor_get_power_info_default(struct acpi_processor *pr) static int acpi_processor_get_power_info_cst(struct acpi_processor *pr) { - acpi_status status = 0; + acpi_status status; u64 count; int current_count; - int i; + int i, ret = 0; struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; union acpi_object *cst; @@ -358,7 +358,7 @@ static int acpi_processor_get_power_info_cst(struct acpi_processor *pr) /* There must be at least 2 elements */ if (!cst || (cst->type != ACPI_TYPE_PACKAGE) || cst->package.count < 2) { printk(KERN_ERR PREFIX "not enough elements in _CST\n"); - status = -EFAULT; + ret = -EFAULT; goto end; } @@ -367,7 +367,7 @@ static int acpi_processor_get_power_info_cst(struct acpi_processor *pr) /* Validate number of power states. */ if (count < 1 || count != cst->package.count - 1) { printk(KERN_ERR PREFIX "count given by _CST is not valid\n"); - status = -EFAULT; + ret = -EFAULT; goto end; } @@ -489,12 +489,12 @@ static int acpi_processor_get_power_info_cst(struct acpi_processor *pr) /* Validate number of power states discovered */ if (current_count < 2) - status = -EFAULT; + ret = -EFAULT; end: kfree(buffer.pointer); - return status; + return ret; } static void acpi_processor_power_verify_c3(struct acpi_processor *pr, @@ -1111,7 +1111,7 @@ static int acpi_processor_registered; int acpi_processor_power_init(struct acpi_processor *pr) { - acpi_status status = 0; + acpi_status status; int retval; struct cpuidle_device *dev; static int first_run; |