From: Boris Brezillon boris.brezillon@collabora.com
[ Upstream commit bd19c4527056b3e42e8c286136660aa14d0b6c90 ]
bridge->next is only points to the new bridge if drm_bridge_attach() succeeds. No need to reset it manually here.
Note that this change is part of the attempt to make the bridge chain a double-linked list. In order to do that we must patch all drivers manipulating the bridge->next field.
Signed-off-by: Boris Brezillon boris.brezillon@collabora.com Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Acked-by: Inki Dae inki.dae@samsung.com Link: https://patchwork.freedesktop.org/patch/msgid/20191023154512.9762-3-boris.br... Stable-dep-of: 13fcfcb2a9a4 ("drm/msm/mdp5: Add check for kzalloc") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/exynos/exynos_dp.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/gpu/drm/exynos/exynos_dp.c b/drivers/gpu/drm/exynos/exynos_dp.c index e0cfae744afc9..01c5fbf9083a0 100644 --- a/drivers/gpu/drm/exynos/exynos_dp.c +++ b/drivers/gpu/drm/exynos/exynos_dp.c @@ -109,7 +109,6 @@ static int exynos_dp_bridge_attach(struct analogix_dp_plat_data *plat_data, if (ret) { DRM_DEV_ERROR(dp->dev, "Failed to attach bridge to drm\n"); - bridge->next = NULL; return ret; } }