| Message ID | 1453251726-22221-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/gpu/drm/ttm/ttm_lock.c b/drivers/gpu/drm/ttm/ttm_lock.c index 6a95454..f154fb1 100644 --- a/drivers/gpu/drm/ttm/ttm_lock.c +++ b/drivers/gpu/drm/ttm/ttm_lock.c @@ -180,7 +180,7 @@ int ttm_write_lock(struct ttm_lock *lock, bool interruptible) spin_unlock(&lock->lock); } } else - wait_event(lock->queue, __ttm_read_lock(lock)); + wait_event(lock->queue, __ttm_write_lock(lock)); return ret; }
This is a note to let you know that I have just added a patch titled drm/ttm: Fixed a read/write lock imbalance to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue This patch is scheduled to be released in version 3.19.8-ckt13. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.19.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ---8<------------------------------------------------------------ From dab39b3b32dcc8b6bc153d677859eb8a2c0c5d14 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom <thellstrom@vmware.com> Date: Fri, 20 Nov 2015 11:43:50 -0800 Subject: drm/ttm: Fixed a read/write lock imbalance commit 025af189fb44250206dd8a32fa4a682392af3301 upstream. In ttm_write_lock(), the uninterruptible path should call __ttm_write_lock() not __ttm_read_lock(). This fixes a vmwgfx hang on F23 start up. syeh: Extracted this from one of Thomas' internal patches. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/gpu/drm/ttm/ttm_lock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 1.9.1