[PATCH v9 3/5] drm/mxsfb: put the bridge returned by drm_bridge_chain_get_first_bridge()

[Luca Ceresoli <luca.ceresoli@bootlin.com>]

The bridge returned by drm_bridge_chain_get_first_bridge() is
refcounted. Put it when done. Use a scope-based free action to catch all
the code paths.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
---

Changes in v9:
- declare 'bridge' variable on first usage to avoid unnecessary cleanup for
  !connector_state->crtc
- removed Maxime's R-by (diff content changed)

Changes in v8: none

This patch was added in v7.
---
 drivers/gpu/drm/mxsfb/lcdif_kms.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/mxsfb/lcdif_kms.c b/drivers/gpu/drm/mxsfb/lcdif_kms.c
index dbd42cc1da87f82ef9cd4ccc70cdecbe56035174..1c3b33be6c40f5e6e25b0104040bf4eb56e06081 100644
--- a/drivers/gpu/drm/mxsfb/lcdif_kms.c
+++ b/drivers/gpu/drm/mxsfb/lcdif_kms.c
@@ -433,7 +433,6 @@ static int lcdif_crtc_atomic_check(struct drm_crtc *crtc,
 	struct drm_connector *connector;
 	struct drm_encoder *encoder;
 	struct drm_bridge_state *bridge_state;
-	struct drm_bridge *bridge;
 	u32 bus_format, bus_flags;
 	bool format_set = false, flags_set = false;
 	int ret, i;
@@ -453,7 +452,8 @@ static int lcdif_crtc_atomic_check(struct drm_crtc *crtc,
 
 		encoder = connector_state->best_encoder;
 
-		bridge = drm_bridge_chain_get_first_bridge(encoder);
+		struct drm_bridge *bridge __free(drm_bridge_put) =
+			drm_bridge_chain_get_first_bridge(encoder);
 		if (!bridge)
 			continue;
 

-- 
2.50.0