Hi Arnd,
Thanks for the patch, applied.
Best regards,
Jacek Anaszewski
On 01/25/2017 11:22 PM, Arnd Bergmann wrote:
> gcc gets confused about the control flow in ktd2692_parse_dt(), causing
> it to warn about what seems like a potential bug:
>
> drivers/leds/leds-ktd2692.c: In function 'ktd2692_probe':
> drivers/leds/leds-ktd2692.c:244:15: error: '*((void *)&led_cfg+8)' may be used uninitialized in this function [-Werror=maybe-uninitialized]
> drivers/leds/leds-ktd2692.c:225:7: error: 'led_cfg.flash_max_microamp' may be used uninitialized in this function [-Werror=maybe-uninitialized]
> drivers/leds/leds-ktd2692.c:232:3: error: 'led_cfg.movie_max_microamp' may be used uninitialized in this function [-Werror=maybe-uninitialized]
>
> The code is fine, and slightly reworking it in an equivalent way lets
> gcc figure that out too, which gets rid of the warning.
>
> Fixes: 77e7915b15bb ("leds: ktd2692: Add missing of_node_put")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
> drivers/leds/leds-ktd2692.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/leds/leds-ktd2692.c b/drivers/leds/leds-ktd2692.c
> index bf23ba191ad0..45296aaca9da 100644
> --- a/drivers/leds/leds-ktd2692.c
> +++ b/drivers/leds/leds-ktd2692.c
> @@ -270,15 +270,15 @@ static int ktd2692_parse_dt(struct ktd2692_context *led, struct device *dev,
> return -ENXIO;
>
> led->ctrl_gpio = devm_gpiod_get(dev, "ctrl", GPIOD_ASIS);
> - if (IS_ERR(led->ctrl_gpio)) {
> - ret = PTR_ERR(led->ctrl_gpio);
> + ret = PTR_ERR_OR_ZERO(led->ctrl_gpio);
> + if (ret) {
> dev_err(dev, "cannot get ctrl-gpios %d\n", ret);
> return ret;
> }
>
> led->aux_gpio = devm_gpiod_get(dev, "aux", GPIOD_ASIS);
> - if (IS_ERR(led->aux_gpio)) {
> - ret = PTR_ERR(led->aux_gpio);
> + ret = PTR_ERR_OR_ZERO(led->aux_gpio);
> + if (ret) {
> dev_err(dev, "cannot get aux-gpios %d\n", ret);
> return ret;
> }
>
