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[v3,01/12] drm/vgem: Use ww_mutex_(un)lock even with a NULL context

Message ID 1482346000-9927-2-git-send-email-nhaehnle@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Nicolai Hähnle Dec. 21, 2016, 6:46 p.m. UTC 
From: Nicolai Hähnle <Nicolai.Haehnle@amd.com>

v2: use resv->lock instead of resv->lock.base (Christian König)

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Maarten Lankhorst <dev@mblankhorst.nl>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Nicolai Hähnle <Nicolai.Haehnle@amd.com>
---
 drivers/gpu/drm/vgem/vgem_fence.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/gpu/drm/vgem/vgem_fence.c b/drivers/gpu/drm/vgem/vgem_fence.c
index 488909a..9cb00a5 100644
--- a/drivers/gpu/drm/vgem/vgem_fence.c
+++ b/drivers/gpu/drm/vgem/vgem_fence.c
@@ -191,12 +191,12 @@  int vgem_fence_attach_ioctl(struct drm_device *dev,
 
 	/* Expose the fence via the dma-buf */
 	ret = 0;
-	mutex_lock(&resv->lock.base);
+	ww_mutex_lock(&resv->lock, NULL);
 	if (arg->flags & VGEM_FENCE_WRITE)
 		reservation_object_add_excl_fence(resv, fence);
 	else if ((ret = reservation_object_reserve_shared(resv)) == 0)
 		reservation_object_add_shared_fence(resv, fence);
-	mutex_unlock(&resv->lock.base);
+	ww_mutex_unlock(&resv->lock);
 
 	/* Record the fence in our idr for later signaling */
 	if (ret == 0) {