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| author | Boris Brezillon <boris.brezillon@collabora.com> | 2020-01-07 21:58:03 +0300 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@collabora.com> | 2020-01-08 02:33:24 +0300 |
| commit | 6ae1a4bbe1138e883c34ea78ef29986d9f420bd7 (patch) | |
| tree | 983cc843aa08a105fe223c7e04d1f4393ef73f5f | |
| parent | 292f3e496be0cac933dfa86e9d0bea5d96224c14 (diff) | |
| download | linux-6ae1a4bbe1138e883c34ea78ef29986d9f420bd7.tar.xz | |
Revert "drm/bridge: Fix a NULL pointer dereference in drm_atomic_bridge_chain_check()"
This reverts commit b18398c16e17 ("drm/bridge: Fix a NULL pointer
dereference in drm_atomic_bridge_chain_check()"). Commit 6ed7e9625fa6
("drm/bridge: Add a drm_bridge_state object") introduced a circular
dependency between drm.ko and drm_kms_helper.ko which uncovered a
misdesign in how the whole thing was implemented. Let's revert all
patches depending on the bridge_state infrastructure for now.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200107185807.606999-2-boris.brezillon@collabora.com
| -rw-r--r-- | drivers/gpu/drm/drm_bridge.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index 32d43bfeeca1..37400607e9b7 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -938,19 +938,15 @@ int drm_atomic_bridge_chain_check(struct drm_bridge *bridge, struct drm_connector_state *conn_state) { struct drm_connector *conn = conn_state->connector; - struct drm_encoder *encoder; + struct drm_encoder *encoder = bridge->encoder; struct drm_bridge *iter; int ret; - if (!bridge) - return 0; - ret = drm_atomic_bridge_chain_select_bus_fmts(bridge, crtc_state, conn_state); if (ret) return ret; - encoder = bridge->encoder; list_for_each_entry_reverse(iter, &encoder->bridge_chain, chain_node) { int ret; |