Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/bridge: get/put the bridge reference in drm_bridge_add/remove()
drm_bridge_add() adds the bridge to the global bridge_list, so take a
reference for that. Vice versa in drm_bridge_remove().
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250620-drm-bridge-alloc-getput-drm-bridge-c-v9-1-ca53372c9a84@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
+4
+4
drivers/gpu/drm/drm_bridge.c
+4
drivers/gpu/drm/drm_bridge.c
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*/
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void drm_bridge_add(struct drm_bridge *bridge)
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{
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drm_bridge_get(bridge);
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+
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mutex_init(&bridge->hpd_mutex);
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if (bridge->ops & DRM_BRIDGE_OP_HDMI)
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mutex_unlock(&bridge_lock);
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mutex_destroy(&bridge->hpd_mutex);
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+
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drm_bridge_put(bridge);
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}
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EXPORT_SYMBOL(drm_bridge_remove);
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