Thread (184 messages) 184 messages, 4 authors, 2015-01-29
STALE4194d REVIEWED: 2 (0M)

[PATCH 3.12 071/176] drm/vmwgfx: Fix fence event code

From: Jiri Slaby <hidden>
Date: 2015-01-29 09:06:48
Also in: lkml
Subsystem: drm driver for vmware virtual gpu, drm drivers, drm drivers and misc gpu patches, the rest · Maintainers: Zack Rusin, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds

From: Thomas Hellstrom <redacted>

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

===============

commit 89669e7a7f96be3ee8d9a22a071d7c0d3b4428fc upstream.

The commit "vmwgfx: Rework fence event action" introduced a number of bugs
that are fixed with this commit:

a) A forgotten return stateemnt.
b) An if statement with identical branches.

Reported-by: Rob Clark <redacted>
Signed-off-by: Thomas Hellstrom <redacted>
Reviewed-by: Jakob Bornecrantz <redacted>
Reviewed-by: Sinclair Yeh <redacted>
Signed-off-by: Jiri Slaby <redacted>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_fence.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
index c62d20e8a6f1..ee742f14ddc2 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
@@ -1049,6 +1049,8 @@ int vmw_event_fence_action_create(struct drm_file *file_priv,
 	if (ret != 0)
 		goto out_no_queue;
 
+	return 0;
+
 out_no_queue:
 	event->base.destroy(&event->base);
 out_no_event:
@@ -1123,17 +1125,10 @@ int vmw_fence_event_ioctl(struct drm_device *dev, void *data,
 
 	BUG_ON(fence == NULL);
 
-	if (arg->flags & DRM_VMW_FE_FLAG_REQ_TIME)
-		ret = vmw_event_fence_action_create(file_priv, fence,
-						    arg->flags,
-						    arg->user_data,
-						    true);
-	else
-		ret = vmw_event_fence_action_create(file_priv, fence,
-						    arg->flags,
-						    arg->user_data,
-						    true);
-
+	ret = vmw_event_fence_action_create(file_priv, fence,
+					    arg->flags,
+					    arg->user_data,
+					    true);
 	if (unlikely(ret != 0)) {
 		if (ret != -ERESTARTSYS)
 			DRM_ERROR("Failed to attach event to fence.\n");
-- 
2.2.2
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