ieee1394: sbp2: safer agent reset in error handlers

The scsi_host_template's eh_abort_handler and eh_device_reset_handler
are allowed to sleep.  Use this to run sbp2_agent_reset in the more
reliable mode which returns _after_ its write transaction was finished.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Index: linux/drivers/ieee1394/sbp2.c
===================================================================
--- linux.orig/drivers/ieee1394/sbp2.c	2006-08-14 00:21:55.000000000 +0200
+++ linux/drivers/ieee1394/sbp2.c	2006-08-14 00:22:32.000000000 +0200
@@ -2588,7 +2588,7 @@ static int sbp2scsi_abort(struct scsi_cm
 		/*
 		 * Initiate a fetch agent reset.
 		 */
-		sbp2_agent_reset(scsi_id, 0);
+		sbp2_agent_reset(scsi_id, 1);
 		sbp2scsi_complete_all_commands(scsi_id, DID_BUS_BUSY);
 	}
 
@@ -2607,7 +2607,7 @@ static int sbp2scsi_reset(struct scsi_cm
 
 	if (sbp2util_node_is_available(scsi_id)) {
 		SBP2_ERR("Generating sbp2 fetch agent reset");
-		sbp2_agent_reset(scsi_id, 0);
+		sbp2_agent_reset(scsi_id, 1);
 	}
 
 	return SUCCESS;