[PATCH 2/2] nfs-utils: mount.nfs: fix null pointer derefernce in nfs_parse_simple_hostname

[Vivek Trivedi <t.vivek@samsung.com>]

In function nfs_parse_simple_hostname, hostname can be NULL,
dereferncing it while passing it to free(*hostname) may result in segfault.

Signed-off-by: Vivek Trivedi <t.vivek@samsung.com>
---
 utils/mount/parse_dev.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/utils/mount/parse_dev.c b/utils/mount/parse_dev.c
index d64b83d..0d3bcb9 100644
--- a/utils/mount/parse_dev.c
+++ b/utils/mount/parse_dev.c
@@ -118,7 +118,8 @@ static int nfs_parse_simple_hostname(const char *dev,
 	if (pathname) {
 		*pathname = strndup(colon, path_len);
 		if (*pathname == NULL) {
-			free(*hostname);
+			if (hostname)
+				free(*hostname);
 			return nfs_pdn_nomem_err();
 		}
 	}
-- 
1.7.9.5