From: Thomas Hellstrom <thellst...@vmware.com>
3.4.113-rc1 review patch. If anyone has any objections, please let me know.
------------------
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 <thellst...@vmware.com>
Reviewed-by: Sinclair Yeh <s...@vmware.com>
Signed-off-by: Zefan Li <lize...@huawei.com>
---
drivers/gpu/drm/ttm/ttm_lock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/ttm/ttm_lock.c b/drivers/gpu/drm/ttm/ttm_lock.c
index 075daf4..9934b4d 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;
}
--
1.9.1
