[PATCH] gpiolib: Fix uninitialized variable warning

From: Ross Zwisler
Date: Wed Dec 23 2015 - 16:46:37 EST


Commit ef7c7553039b ("gpiolib: improve overlap check of range of gpio")
introduced the following compiler warning:

drivers/gpio/gpiolib.c: In function âgpiochip_addâ:
drivers/gpio/gpiolib.c:193:20: warning: âiteratorâ may be used uninitialized in this function [-Wmaybe-uninitialized]
struct gpio_chip *iterator;
^

Fix this by initializing 'iterator' to NULL.

Signed-off-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
---

This was found in next-20151223.

---
drivers/gpio/gpiolib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index d72ac1f..abdcd6c 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -190,7 +190,7 @@ EXPORT_SYMBOL_GPL(gpiod_get_direction);
static int gpiochip_add_to_list(struct gpio_chip *chip)
{
struct list_head *pos;
- struct gpio_chip *iterator;
+ struct gpio_chip *iterator = NULL;
struct gpio_chip *previous = NULL;

if (list_empty(&gpio_chips)) {
--
2.6.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/