From 4cd021ae8620717240c46a7e7888f952f7ce3127 Mon Sep 17 00:00:00 2001
From: Vladislav Bolkhovitin <vst@vlnb.net>
Date: Fri, 31 Jan 2014 02:33:11 +0000
Subject: [PATCH] scst_vdisk: Check that "filename" is specified at most once

Signed-off-by: Bart Van Assche <bvanassche@acm.org>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5255 d57e44dd-8a1f-0410-8b47-8ef2f437770f
---
 scst/src/dev_handlers/scst_vdisk.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scst/src/dev_handlers/scst_vdisk.c b/scst/src/dev_handlers/scst_vdisk.c
index d6bd45ebf..30834d194 100644
--- a/scst/src/dev_handlers/scst_vdisk.c
+++ b/scst/src/dev_handlers/scst_vdisk.c
@@ -4710,6 +4710,12 @@ static int vdev_parse_add_dev_params(struct scst_vdisk_dev *virt_dev,
 		}
 
 		if (!strcasecmp("filename", p)) {
+			if (virt_dev->filename) {
+				PRINT_ERROR("%s specified more than once"
+					    " (device %s)", p, virt_dev->name);
+				res = -EINVAL;
+				goto out;
+			}
 			if (*pp != '/') {
 				PRINT_ERROR("Filename %s must be global "
 					"(device %s)", pp, virt_dev->name);