diff options
| author | Haibo Chen <haibo.chen@nxp.com> | 2022-12-10 23:05:58 +0100 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2022-12-30 13:38:33 +0100 |
| commit | 90fee3dd5bfc1b9f4c8c0ba6cd2a35c9d79ca4de (patch) | |
| tree | d54b4b46d612db5c77dddfe0a38d38ef2e20e2e5 /drivers/gpio | |
| parent | gpiolib: Fix using uninitialized lookup-flags on ACPI platforms (diff) | |
| download | linux-90fee3dd5bfc1b9f4c8c0ba6cd2a35c9d79ca4de.tar.xz linux-90fee3dd5bfc1b9f4c8c0ba6cd2a35c9d79ca4de.zip | |
gpio: pca953x: avoid to use uninitialized value pinctrl
There is a variable pinctrl declared without initializer. And then
has the case (switch operation chose the default case) to directly
use this uninitialized value, this is not a safe behavior. So here
initialize the pinctrl as 0 to avoid this issue.
This is reported by Coverity.
Fixes: 13c5d4ce8060 ("gpio: pca953x: Add support for PCAL6534")
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-pca953x.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index a59d61cd44b2..5299e5bb76d6 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -474,6 +474,9 @@ static u8 pcal6534_recalc_addr(struct pca953x_chip *chip, int reg, int off) case PCAL6524_DEBOUNCE: pinctrl = ((reg & PCAL_PINCTRL_MASK) >> 1) + 0x1c; break; + default: + pinctrl = 0; + break; } return pinctrl + addr + (off / BANK_SZ); |