When the .atomic_commit() handler fails, clean up planes previoulsy
prepared by drm_atomic_helper_prepare_planes() with a call to
drm_atomic_helper_cleanup_planes().

Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
 drivers/gpu/drm/rcar-du/rcar_du_kms.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c 
b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
index 20859aae882e..226a7e368b59 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
@@ -495,8 +495,10 @@ static int rcar_du_atomic_commit(struct drm_device *dev,

        /* Allocate the commit object. */
        commit = kzalloc(sizeof(*commit), GFP_KERNEL);
-       if (commit == NULL)
-               return -ENOMEM;
+       if (commit == NULL) {
+               ret = -ENOMEM;
+               goto error;
+       }

        INIT_WORK(&commit->work, rcar_du_atomic_work);
        commit->dev = dev;
@@ -519,7 +521,7 @@ static int rcar_du_atomic_commit(struct drm_device *dev,

        if (ret) {
                kfree(commit);
-               return ret;
+               goto error;
        }

        /* Swap the state, this is the point of no return. */
@@ -531,6 +533,10 @@ static int rcar_du_atomic_commit(struct drm_device *dev,
                rcar_du_atomic_complete(commit);

        return 0;
+
+error:
+       drm_atomic_helper_cleanup_planes(dev, state);
+       return ret;
 }

 /* 
-----------------------------------------------------------------------------
-- 
Regards,

Laurent Pinchart

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