Whenever alloc_handle fails, we ignored the error and dequeued the
next APC. This patch makes the loop break whenever the error status
changes.

Note that the APC is still marked as executed although it failed.
Signed-off-by: Rémi Bernon <rbernon@codeweavers.com>
Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>