Hello.

On 04/20/2015 02:15 PM, Colin King wrote:

From: Colin Ian King <colin.k...@canonical.com>

cppcheck detected an unitialized variable:

   Uninitialized.

[drivers/pinctrl/mediatek/pinctrl-mtk-common.c:897]:
   (error) Uninitialized variable: unmask

unmask should be initialized to zero to ensure unmasking
only occurs if a previous mask occurred. The current situation
is that the unmask variable could contain any random garbage
causing random unexpected unmasking.

Signed-off-by: Colin Ian King <colin.k...@canonical.com>
---
  drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c 
b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index 493294c..3173125 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -881,7 +881,8 @@ static int mtk_gpio_set_debounce(struct gpio_chip *chip, 
unsigned offset,
        if (!mtk_eint_get_mask(pctl, eint_num)) {
                mtk_eint_mask(d);
                unmask = 1;
-       }
+       } else
+               unmask = 0;

   The CodingStyle dictates that there should be {} around *else* branch too.

[...]

WBR, Sergei

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