[3.13.y-ckt stable] Patch "drm/vmwgfx: Fix fence event code" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    drm/vmwgfx: Fix fence event code

to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue

This patch is scheduled to be released in version 3.13.11-ckt15.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From ba82b3aec856b62f62f5d24356b5d5f1e774c328 Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <thellstrom at vmware.com>
Date: Tue, 2 Dec 2014 03:36:57 -0800
Subject: drm/vmwgfx: Fix fence event code

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 <robdclark at gmail.com>
Signed-off-by: Thomas Hellstrom <thellstrom at vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob at vmware.com>
Reviewed-by: Sinclair Yeh <syeh at vmware.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 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 dc338fe..425a81b 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
@@ -1032,6 +1032,8 @@ 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:
@@ -1106,17 +1108,10 @@ 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");
--
1.9.1