pl061: fix offset value range checking
The valid offset value is 0..PL061_GPIO_NR-1, this patch corrects the
offset value range checking.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/gpio/pl061.c b/drivers/gpio/pl061.c
index 105701a..ee568c8 100644
--- a/drivers/gpio/pl061.c
+++ b/drivers/gpio/pl061.c
@@ -164,7 +164,7 @@
unsigned long flags;
u8 gpiois, gpioibe, gpioiev;
- if (offset < 0 || offset > PL061_GPIO_NR)
+ if (offset < 0 || offset >= PL061_GPIO_NR)
return -EINVAL;
spin_lock_irqsave(&chip->irq_lock, flags);