On Wed 23 Dec 13:46 PST 2015, Ross Zwisler wrote:
> Commit ef7c7553039b ("gpiolib: improve overlap check of range of gpio")
> introduced the following compiler warning:
>
> drivers/gpio/gpiolib.c: In function ‘gpiochip_add’:
> drivers/gpio/gpiolib.c:193:20: warning: ‘iterator’ 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.zwis...@linux.intel.com>
Reviewed-by: Bjorn Andersson <bjorn.anders...@sonymobile.com>
Regards,
Bjorn
> ---
>
> 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
>
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