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authorDave Airlie <airlied@redhat.com>2016-07-02 15:56:01 +1000
committerDave Airlie <airlied@redhat.com>2016-07-02 15:56:01 +1000
commit542d972221e024681b502033154f917c1455469f (patch)
tree1c7c1be768f6e1b496a3edad6b105804a8d05c57 /drivers/gpu/drm/vc4/vc4_kms.c
parent583fa4e02775b26d76771d4e1ddc6f10ba005ef2 (diff)
parent4c2e07c6a29e0129e975727b9f57eede813eea85 (diff)
Back-merge tag 'v4.7-rc5' into drm-next
Linux 4.7-rc5 The fsl-dcu pull needs -rc3 so go to -rc5 for now.
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_kms.c')
-rw-r--r--drivers/gpu/drm/vc4/vc4_kms.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c
index 8f4d5ffc32be..9a217fd025f3 100644
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -119,10 +119,18 @@ static int vc4_atomic_commit(struct drm_device *dev,
return -ENOMEM;
/* Make sure that any outstanding modesets have finished. */
- ret = down_interruptible(&vc4->async_modeset);
- if (ret) {
- kfree(c);
- return ret;
+ if (nonblock) {
+ ret = down_trylock(&vc4->async_modeset);
+ if (ret) {
+ kfree(c);
+ return -EBUSY;
+ }
+ } else {
+ ret = down_interruptible(&vc4->async_modeset);
+ if (ret) {
+ kfree(c);
+ return ret;
+ }
}
ret = drm_atomic_helper_prepare_planes(dev, state);