[SCSI] be2iscsi: Fixing return values

This patch fixes the return values as per comment from Mike Christie

Signed-off-by: Jayamohan Kallickal <jayamohank@serverengines.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 7d4ac5c..ff8b1cd 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -81,7 +81,7 @@
 		SE_DEBUG(DBG_LVL_1,
 			 "Failed to allocate memory for mgmt_check_supported_fw"
 			 "\n");
-		return -1;
+		return -ENOMEM;
 	}
 	nonemb_cmd.size = sizeof(struct be_mgmt_controller_attributes);
 	req = nonemb_cmd.va;