media: exynos4-is: Add missed check for pinctrl_lookup_state()

fimc_md_get_pinctrl() misses a check for pinctrl_lookup_state().
Add the missed check to fix it.

Fixes: 4163851f7b99 ("[media] s5p-fimc: Use pinctrl API for camera ports configuration]")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index 96e336b19cc3b1768233ad14a4fefd8a395f9d2b..16dd660137a8d9339bcd42bf60e76a729047db97 100644 (file)
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -1270,6 +1270,9 @@ static int fimc_md_get_pinctrl(struct fimc_md *fmd)
 
        pctl->state_idle = pinctrl_lookup_state(pctl->pinctrl,
                                        PINCTRL_STATE_IDLE);
+       if (IS_ERR(pctl->state_idle))
+               return PTR_ERR(pctl->state_idle);
+
        return 0;
 }