[PATCH 2/2] drm/bridge: samsung-dsim: use drm_bridge_clear_and_put() to put the next bridge

[Luca Ceresoli]

drm_bridge_clear_and_put() is simpler to write and it prevents any
potential future use-after-free.

Signed-off-by: Luca Ceresoli <luca.ceres...@bootlin.com>
---
 drivers/gpu/drm/bridge/samsung-dsim.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c 
b/drivers/gpu/drm/bridge/samsung-dsim.c
index 1d85e706c74b..568fc0f5b416 100644
--- a/drivers/gpu/drm/bridge/samsung-dsim.c
+++ b/drivers/gpu/drm/bridge/samsung-dsim.c
@@ -1980,8 +1980,7 @@ static int samsung_dsim_host_attach(struct mipi_dsi_host 
*host,
        return 0;
 
 err_release_next_bridge:
-       drm_bridge_put(dsi->bridge.next_bridge);
-       dsi->bridge.next_bridge = NULL;
+       drm_bridge_clear_and_put(&dsi->bridge.next_bridge);
        return ret;
 }
 
@@ -2002,8 +2001,7 @@ static int samsung_dsim_host_detach(struct mipi_dsi_host 
*host,
        if (pdata->host_ops && pdata->host_ops->detach)
                pdata->host_ops->detach(dsi, device);
 
-       drm_bridge_put(dsi->bridge.next_bridge);
-       dsi->bridge.next_bridge = NULL;
+       drm_bridge_clear_and_put(&dsi->bridge.next_bridge);
 
        samsung_dsim_unregister_te_irq(dsi);
 

-- 
2.52.0