From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
commit a8c6ecb3be7029881f7c95e5e201a629094a4e1a
Merge: 8dd0eb35 9eccca0
Author: Dave Airlie <airlied@xxxxxxxxxx>
Date: Mon Mar 9 19:58:30 2015 +1000
Merge tag 'v4.0-rc3' into drm-next
managed to pick the wrong code to resolve the conflict and left us with
a mutex_lock(struct_mutex) without the mutex_unlock(struct_mutex) leading
to a deadlock. Fix the problem by recovering the correct code which doesn't
need the lock.
Cc: Dave Airlie <airlied@xxxxxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_display.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index b029e47..0d3b027 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12237,9 +12237,7 @@ intel_check_cursor_plane(struct drm_plane *plane,
return -ENOMEM;
}
- /* we only need to pin inside GTT if cursor is non-phy */
- mutex_lock(&dev->struct_mutex);
- if (!INTEL_INFO(dev)->cursor_needs_physical && obj->tiling_mode) {
+ if (fb->modifier[0] != DRM_FORMAT_MOD_NONE) {
DRM_DEBUG_KMS("cursor cannot be tiled\n");
ret = -EINVAL;
}
--
2.0.5
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