Re: [PATCH] pinctrl: mediatek: mtk-common: initialize unmask
Hello.
On 04/20/2015 02:15 PM, Colin King wrote:
From: Colin Ian King
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
---
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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[PATCH] pinctrl: mediatek: mtk-common: initialize unmask
From: Colin Ian King
cppcheck detected an unitialized variable:
[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
---
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;
clr_bit = 0xff << eint_offset;
writel(clr_bit, pctl->eint_reg_base + clr_offset);
--
2.1.4
--
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Re: [PATCH] pinctrl: mediatek: mtk-common: initialize unmask
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
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[PATCH] pinctrl: mediatek: mtk-common: initialize unmask
From: Colin Ian King colin.k...@canonical.com
cppcheck detected an unitialized variable:
[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;
clr_bit = 0xff eint_offset;
writel(clr_bit, pctl-eint_reg_base + clr_offset);
--
2.1.4
--
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