hpsa: decrement h->commands_outstanding in fail_all_outstanding_cmds

make tracking of outstanding commands more robust
Reviewed-by: NScott Teel <scott.teel@pmcs.com>
Reviewed-by: NKevin Barnett <kevin.barnett@pmcs.com>
Reviewed-by: NTomas Henzl <thenzl@redhat.com>
Reviewed-by: NHannes Reinecke <hare@Suse.de>
Signed-off-by: NDon Brace <don.brace@pmcs.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJames Bottomley <JBottomley@Odin.com>

drivers/scsi/hpsa.c

@@ -6892,6 +6892,7 @@ static void fail_all_outstanding_cmds(struct ctlr_info *h)
 		if (refcount > 1) {
 			c->err_info->CommandStatus = CMD_CTLR_LOCKUP;
 			finish_cmd(c);
+			atomic_dec(&h->commands_outstanding);
 			failcount++;
 		}
 		cmd_free(h, c);