autofs-5.1.0 - fix leak in parse_mount()

From: Ian Kent <ikent@redhat.com>

Fix a potential memory leak of the allocated mount location
in modules/parse_sun.c:parse_mount().
---
 modules/parse_sun.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/modules/parse_sun.c b/modules/parse_sun.c
index 1fdea0b..b881ee9 100644
--- a/modules/parse_sun.c
+++ b/modules/parse_sun.c
@@ -1567,7 +1567,10 @@ int parse_mount(struct autofs_point *ap, const char *name,
 		 */
 		if ((strstr(options, "fstype=autofs") &&
 		     strstr(options, "hosts"))) {
-			loc = NULL;
+			if (loc) {
+				free(loc);
+				loc = NULL;
+			}
 			loclen = 0;
 		} else {
 			loclen = strlen(loc);
@@ -1591,7 +1594,8 @@ int parse_mount(struct autofs_point *ap, const char *name,
 			rv = sun_mount(ap, ap->path, name, name_len,
 				       loc, loclen, options, ctxt);
 
-		free(loc);
+		if (loc)
+			free(loc);
 		free(options);
 		pthread_setcancelstate(cur_state, NULL);
 	}