tree 154bdf3353d6947fedb07449a6e1a259eb221e46
parent 76c7d18bcddc9794f898ebdee44a3160c636da9c
author Thomas Hellstrom <thellstrom@vmware.com> 1391075899 +0100
committer Thomas Hellstrom <thellstrom@vmware.com> 1391585771 +0100

drm/vmwgfx: Fix regression caused by "drm/ttm: make ttm reservation calls behave like reservation calls"

The call to ttm_eu_backoff_reservation() as part of an error path would cause
a lock imbalance if the reservation ticket was not initialized. This error is
easily triggered from user-space by submitting a bogus command stream.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Cc: stable@vger.kernel.org
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>