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Commit 6b0e284c authored by benjamin.gaignard@linaro.org's avatar benjamin.gaignard@linaro.org Committed by Benjamin Gaignard
Browse files

drm/bridge: make drm_panel_bridge_remove more robust 



Make sure that bridge parameter is not NULL and can be safely
cast into a panel_bridge structure.

Signed-off-by: default avatarBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: default avatarPhilippe Cornu <philippe.cornu@st.com>
Tested-by: default avatarPhilippe Cornu <philippe.cornu@st.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1506936755-23625-2-git-send-email-benjamin.gaignard@linaro.org
parent f8e0731d

drivers/gpu/drm/bridge/panel.c

+9 −1
Original line number Diff line number Diff line
@@ -188,7 +188,15 @@ EXPORT_SYMBOL(drm_panel_bridge_add); 
 */

void drm_panel_bridge_remove(struct drm_bridge *bridge)

{

	struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);

	struct panel_bridge *panel_bridge;



	if (!bridge)

		return;



	if (bridge->funcs != &panel_bridge_bridge_funcs)

		return;



	panel_bridge = drm_bridge_to_panel_bridge(bridge);



	drm_bridge_remove(bridge);

	devm_kfree(panel_bridge->panel->dev, bridge);