[Intel-gfx] [PATCH] drm: Drop mode_config.mutex from get_resources ioctl

[Daniel Vetter]

The only thing this protected is the connector_list, which is
now protected differently.

v2: Also remove comment (Chris).

Cc: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/drm_crtc.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 13c3bacc6b51..f8931b82865a 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -1904,9 +1904,6 @@ int drm_mode_getresources(struct drm_device *dev, void *data,
 	card_res->count_fbs = fb_count;
 	mutex_unlock(&file_priv->fbs_lock);
 
-	/* mode_config.mutex protects the connector list against e.g. DP MST
-	 * connector hot-adding. CRTC/Plane lists are invariant. */
-	mutex_lock(&dev->mode_config.mutex);
 	card_res->max_height = dev->mode_config.max_height;
 	card_res->min_height = dev->mode_config.min_height;
 	card_res->max_width = dev->mode_config.max_width;
@@ -1961,7 +1958,6 @@ int drm_mode_getresources(struct drm_device *dev, void *data,
 	card_res->count_connectors = connector_count;
 
 out:
-	mutex_unlock(&dev->mode_config.mutex);
 	return ret;
 }
 
-- 
2.8.1