diff options
| author |   Douglas Anderson <dianders@chromium.org> | 2021-04-16 15:39:24 -0700 |
|---|---|---|
| committer | Douglas Anderson <dianders@chromium.org> | 2021-04-20 08:56:44 -0700 |
| commit | bab5cca7e609952b069a550e39fe4893149fb658 (patch) | |
| tree | 6c225473e7e62c58a38faa7d689c7ca9bc68f4a4 | |
| parent | drm/meson: dw-hdmi: disable DW-HDMI CEC sub-driver (diff) | |
| download | linux-dev-bab5cca7e609952b069a550e39fe4893149fb658.tar.xz linux-dev-bab5cca7e609952b069a550e39fe4893149fb658.zip | |
drm/bridge: Fix the stop condition of drm_bridge_chain_pre_enable()
The drm_bridge_chain_pre_enable() is not the proper opposite of
drm_bridge_chain_post_disable(). It continues along the chain to
_before_ the starting bridge. Let's fix that.
Fixes: 05193dc38197 ("drm/bridge: Make the bridge chain a double-linked list")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210416153909.v4.1.If62a003f76a2bc4ccc6c53565becc05d2aad4430@changeid
| -rw-r--r-- | drivers/gpu/drm/drm_bridge.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index 64f0effb52ac..044acd07c153 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -522,6 +522,9 @@ void drm_bridge_chain_pre_enable(struct drm_bridge *bridge) list_for_each_entry_reverse(iter, &encoder->bridge_chain, chain_node) { if (iter->funcs->pre_enable) iter->funcs->pre_enable(iter); + + if (iter == bridge) + break; } } EXPORT_SYMBOL(drm_bridge_chain_pre_enable); |