[PATCH] drm/msm/dp: Fix a potential double free in an error handling path

Christophe JAILLET christophe.jaillet at wanadoo.fr
Sun Dec 26 15:14:05 UTC 2021


'dp_bridge' is devm_alloc'ed, so there is no need to free it explicitly or
there will be a double free().

Fixes: 8a3b4c17f863 ("drm/msm/dp: employ bridge mechanism for display enable and disable")
Signed-off-by: Christophe JAILLET <christophe.jaillet at wanadoo.fr>
---
 drivers/gpu/drm/msm/dp/dp_drm.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_drm.c b/drivers/gpu/drm/msm/dp/dp_drm.c
index 188e77c59885..d4d360d19eba 100644
--- a/drivers/gpu/drm/msm/dp/dp_drm.c
+++ b/drivers/gpu/drm/msm/dp/dp_drm.c
@@ -243,7 +243,6 @@ struct drm_bridge *msm_dp_bridge_init(struct msm_dp *dp_display, struct drm_devi
 	rc = drm_bridge_attach(encoder, bridge, NULL, DRM_BRIDGE_ATTACH_NO_CONNECTOR);
 	if (rc) {
 		DRM_ERROR("failed to attach bridge, rc=%d\n", rc);
-		kfree(dp_bridge);
 		return ERR_PTR(rc);
 	}
 
-- 
2.32.0



More information about the dri-devel mailing list