3.13.11.3 -stable review patch.  If anyone has any objections, please let me 
know.

------------------

From: Maarten Lankhorst <[email protected]>

commit 806cbc5026933a781b66adecf6d1658fde9138e6 upstream.

Fixes a regression introduced by 060810d7abaabca "drm/nouveau: fix locking
issues in page flipping paths".  chan->cli->mutex is unlocked a second time
in the fail_unreserve path, fix this by moving mutex_unlock down.

Signed-off-by: Maarten Lankhorst <[email protected]>
Signed-off-by: Ben Skeggs <[email protected]>
Signed-off-by: Kamal Mostafa <[email protected]>
---
 drivers/gpu/drm/nouveau/nouveau_display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c 
b/drivers/gpu/drm/nouveau/nouveau_display.c
index 91c826c..a0b2b87 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -658,9 +658,9 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct 
drm_framebuffer *fb,
        }
 
        ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
-       mutex_unlock(&chan->cli->mutex);
        if (ret)
                goto fail_unreserve;
+       mutex_unlock(&chan->cli->mutex);
 
        /* Update the crtc struct and cleanup */
        crtc->fb = fb;
-- 
1.9.1

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