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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-06-20 18:25:44 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-06-20 18:25:44 +0300
commitaf52739b922f656eb1f39016fabaabe4baeda2e2 (patch)
tree79a7aa810d0493cd0cf4adebac26d37f12e8b545 /drivers/gpu/drm/vc4/vc4_kms.c
parent25ed6a5e97809129a1bc852b6b5c7d03baa112c4 (diff)
parent33688abb2802ff3a230bd2441f765477b94cc89e (diff)
downloadlinux-af52739b922f656eb1f39016fabaabe4baeda2e2.tar.xz
Merge 4.7-rc4 into staging-next
We want the fixes in here, and we can resolve a merge issue in drivers/iio/industrialio-trigger.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 cb37751bc99f..861a623bc185 100644
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -117,10 +117,18 @@ 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);