[PATCH 1/2] gpio: pca953x: avoid to use uninitialized value pinctrl

[haibo.chen@xxxxxxx]

From: Haibo Chen <haibo.chen@xxxxxxx>

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@xxxxxxx>
---
 drivers/gpio/gpio-pca953x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index a59d61cd44b2..c3dd5ceab421 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -453,7 +453,7 @@ static u8 pca953x_recalc_addr(struct pca953x_chip *chip, int reg, int off)
 static u8 pcal6534_recalc_addr(struct pca953x_chip *chip, int reg, int off)
 {
 	int addr;
-	int pinctrl;
+	int pinctrl = 0;
 
 	addr = (reg & PCAL_GPIO_MASK) * NBANK(chip);
 
-- 
2.34.1