From 0decb42995078b9b48a0bfbe9f3884d88383ed2f Mon Sep 17 00:00:00 2001 From: Peter Rosin Date: Mon, 6 Aug 2018 08:19:09 +0200 Subject: drm/sti: do not remove the drm_bridge that was never added [ Upstream commit 66e31a72dc38543b2d9d1ce267dc78ba9beebcfd ] Removing the drm_bridge_remove call should avoid a NULL dereference during list processing in drm_bridge_remove if the error path is ever taken. The more natural approach would perhaps be to add a drm_bridge_add, but there are several other bridges that never call drm_bridge_add. Just removing the drm_bridge_remove is the easier fix. Fixes: 84601dbdea36 ("drm: sti: rework init sequence") Acked-by: Daniel Vetter Signed-off-by: Peter Rosin Signed-off-by: Benjamin Gaignard Link: https://patchwork.freedesktop.org/patch/msgid/20180806061910.29914-2-peda@axentia.se Signed-off-by: Sasha Levin --- drivers/gpu/drm/sti/sti_hda.c | 1 - drivers/gpu/drm/sti/sti_hdmi.c | 1 - 2 files changed, 2 deletions(-) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/sti/sti_hda.c b/drivers/gpu/drm/sti/sti_hda.c index e7c243f70870..08808e3701de 100644 --- a/drivers/gpu/drm/sti/sti_hda.c +++ b/drivers/gpu/drm/sti/sti_hda.c @@ -740,7 +740,6 @@ static int sti_hda_bind(struct device *dev, struct device *master, void *data) return 0; err_sysfs: - drm_bridge_remove(bridge); return -EINVAL; } diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c index 376b0763c874..a5412a6fbeca 100644 --- a/drivers/gpu/drm/sti/sti_hdmi.c +++ b/drivers/gpu/drm/sti/sti_hdmi.c @@ -1352,7 +1352,6 @@ static int sti_hdmi_bind(struct device *dev, struct device *master, void *data) return 0; err_sysfs: - drm_bridge_remove(bridge); hdmi->drm_connector = NULL; return -EINVAL; } -- cgit v1.2.3