media: exynos4-is: Check pipe is valid before calling subdev

If the subdev is not yet present (probably because the subdev module has not yet been loaded), the pipe will be NULL. Make sure that this is not the case before attempting to call the op. Signed-off-by: Simon Shields <[email protected]> Signed-off-by: Sylwester Nawrocki <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
ambv · Dec 18, 2017 · 3090a19 · 3090a19
1 parent 2d41a0c
commit 3090a19
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/include/media/drv-intf/exynos-fimc.h b/include/media/drv-intf/exynos-fimc.h
@@ -155,7 +155,8 @@ static inline struct exynos_video_entity *vdev_to_exynos_video_entity(
 }
 
 #define fimc_pipeline_call(ent, op, args...)				  \
-	(!(ent) ? -ENOENT : (((ent)->pipe->ops && (ent)->pipe->ops->op) ? \
+	((!(ent) || !(ent)->pipe) ? -ENOENT : \
+	(((ent)->pipe->ops && (ent)->pipe->ops->op) ? \
 	(ent)->pipe->ops->op(((ent)->pipe), ##args) : -ENOIOCTLCMD))	  \
 
 #endif /* S5P_FIMC_H_ */