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sync: reorder sync_fence_release

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Previously fence's pts were freed before the were the fence was removed from the
global fence list.  This led to a race with the debugfs support where it would
iterate over sync_pts that had been freed.

Change-Id: Ia3ddbf77de42ca593fc2dc353b5d04e42ddf3946
Signed-off-by: Erik Gilling <konkers@android.com>
This commit is contained in:
Erik Gilling
2012-07-11 17:07:39 -07:00
committed by 黄涛
parent 4f605a26c1
commit 7b6920244b
1 changed files with 2 additions and 2 deletions
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4
drivers/base/sync.c
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@@ -520,12 +520,12 @@ static int sync_fence_release(struct inode *inode, struct file *file)
struct sync_fence *fence = file->private_data;
unsigned long flags;
sync_fence_free_pts(fence);
spin_lock_irqsave(&sync_fence_list_lock, flags);
list_del(&fence->sync_fence_list);
spin_unlock_irqrestore(&sync_fence_list_lock, flags);
sync_fence_free_pts(fence);
kfree(fence);
return 0;