On 11/21/2012 01:44 AM, Rafael J. Wysocki wrote:
On Saturday, November 17, 2012 02:54:23 AM Cyril Roelandt wrote:
The LEN variable is unsigned, therefore checking whether it is less than 0 is
useless.
Signed-off-by: Cyril Roelandt<tipecaml@xxxxxxxxx>
---
drivers/acpi/proc.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c
index 27adb09..37871a7 100644
--- a/drivers/acpi/proc.c
+++ b/drivers/acpi/proc.c
@@ -366,8 +366,6 @@ acpi_system_write_wakeup_device(struct file *file,
if (len> 4)
len = 4;
- if (len< 0)
- return -EFAULT;
I would prefer to check if count< 0 instead.
count has type size_t, so it is also an unsigned variable. I think that
acpi_system_write_wakeup_device really cannot be called with a "count"
parameter that is less than 0.
WBR,
Cyril Roelandt.
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