On Thursday, November 22, 2012 01:05:30 AM Cyril Roelandt wrote: > 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. OK So I suppose we can just drop len entirely and replace it with count, right? [And drop the < 0 check too.] Rafael -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
