turnip: Release bo_mutex lock before potential error path.

Fix defect reported by Coverity Scan.

Missing unlock (LOCK)
missing_unlock: Returning without unlocking queue->device->bo_mutex.

Suggested-by: Jonathan Marek <jonathan@marek.ca>
Fixes: bea6290ca090 ("turnip: device global bo list")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6768>
1 file changed