[PATCH] acpi_system_write_wakeup_device(): fix error check for unsigned variable.

[Cyril Roelandt]

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;
 
 	if (copy_from_user(strbuf, buffer, len))
 		return -EFAULT;
-- 
1.7.10.4

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