[SCSI] allow sleeping in ->eh_bus_reset_handler()

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index 907a1e8..d26dbe2 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -1130,7 +1130,13 @@
 static int
 qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
 {
-	return qla1280_error_action(cmd, BUS_RESET);
+	int rc;
+
+	spin_lock_irq(cmd->device->host->host_lock);
+	rc = qla1280_error_action(cmd, BUS_RESET);
+	spin_unlock_irq(cmd->device->host->host_lock);
+
+	return rc;
 }
 
 /**************************************************************************