[PATCH v2] media: exynos4-is: Add missed check for pinctrl_lookup_state()

[Chuhong Yuan]

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@xxxxxxxxx>
---
Changes in v2:
  - Add fixes tag.

 drivers/media/platform/exynos4-is/media-dev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index 9aaf3b8060d5..9c31d950cddf 100644
--- 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;
 }
 
-- 
2.26.2