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drm: bridge: cdns-mhdp8546: Fix missing mutex unlock on error path

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Add missing mutex unlock before returning from the error path in
cdns_mhdp_atomic_enable().

Fixes: 935a92a1c4 ("drm: bridge: cdns-mhdp8546: Fix possible null pointer dereference")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qi Xi <xiqi2@huawei.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20250904034447.665427-1-xiqi2@huawei.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
This commit is contained in:
Qi Xi 2025-09-04 11:44:47 +08:00 committed by Luca Ceresoli
parent a10f910c77
commit 288dac9fb6
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
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@ -1984,8 +1984,10 @@ static void cdns_mhdp_atomic_enable(struct drm_bridge *bridge,
mhdp_state = to_cdns_mhdp_bridge_state(new_state);
mhdp_state->current_mode = drm_mode_duplicate(bridge->dev, mode);
if (!mhdp_state->current_mode)
return;
if (!mhdp_state->current_mode) {
ret = -EINVAL;
goto out;
}
drm_mode_set_name(mhdp_state->current_mode);