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authorMaarten Lankhorst <maarten.lankhorst@canonical.com>2014-05-01 13:58:05 +0200
committerShow Liu <show.liu@linaro.org>2014-06-18 12:04:48 +0800
commit9175434c135826193e99c6c5a81972d22eceab6f (patch)
tree6a51f7ea0382331b453cf4e7a2f7bf4fc25a8405 /drivers/gpu/drm
parentcbc9f24d094692aa17c3d7b5da74da44cac274c2 (diff)
drm/nouveau: fix another lock unbalance in nouveau_crtc_page_flip
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 <maarten.lankhorst@canonical.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_display.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 24011596af4..5524a370522 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -762,9 +762,9 @@ 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;