[SCSI] fix memory leak in scsi_report_lun_scan

This patch (as1333) fixes a bug in scsi_report_lun_scan().  If a
newly-allocated device can't be used, it should be deleted.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 012f73a..60b262d 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -1339,8 +1339,10 @@
 		sdev = scsi_alloc_sdev(starget, 0, NULL);
 		if (!sdev)
 			return 0;
-		if (scsi_device_get(sdev))
+		if (scsi_device_get(sdev)) {
+			__scsi_remove_device(sdev);
 			return 0;
+		}
 	}
 
 	sprintf(devname, "host %d channel %d id %d",