drm/i915: intel_frontbuffer_flip_prepare() doesn't need struct_mutex

So release the lock earlier.

Reviewed-by: Chris wilson <chris@chris-wilson.co.uk>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 93d3bdf..e1f9ae6 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11475,9 +11475,9 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
                          to_intel_plane(primary)->frontbuffer_bit);
 
        intel_fbc_disable(dev);
+       mutex_unlock(&dev->struct_mutex);
        intel_frontbuffer_flip_prepare(dev,
                                       to_intel_plane(primary)->frontbuffer_bit);
-       mutex_unlock(&dev->struct_mutex);
 
        trace_i915_flip_request(intel_crtc->plane, obj);