autofs-5.1.7 - fix is mounted check on non existent path

From: Ian Kent <raven@themaw.net>

When checking if a path is a mount point the case of a non-existent path
was not being handled.

Signed-off-by: Ian Kent <raven@themaw.net>
---
 CHANGELOG           |    1 +
 lib/dev-ioctl-lib.c |    3 +++
 lib/mounts.c        |   12 +++++++++++-
 3 files changed, 15 insertions(+), 1 deletion(-)

--- autofs-5.1.4.orig/CHANGELOG
+++ autofs-5.1.4/CHANGELOG
@@ -5,6 +5,7 @@
 - use sprintf() when constructing hosts mapent.
 - fix mnts_remove_amdmount() uses wrong list.
 - eliminate cache_lookup_offset() usage.
+- fix is mounted check on non existent path.
 
 xx/xx/2018 autofs-5.1.5
 - fix flag file permission.
--- autofs-5.1.4.orig/lib/dev-ioctl-lib.c
+++ autofs-5.1.4/lib/dev-ioctl-lib.c
@@ -759,6 +759,9 @@ static int dev_ioctl_ismountpoint(unsign
 		int save_errno = errno;
 		free_dev_ioctl_path(param);
 		errno = save_errno;
+		/* Path doesn't exist */
+		if (errno == ENOENT)
+			return 0;
 		return -1;
 	}
 
--- autofs-5.1.4.orig/lib/mounts.c
+++ autofs-5.1.4/lib/mounts.c
@@ -1645,8 +1645,18 @@ static int table_is_mounted(const char *
 	struct mntent mnt_wrk;
 	char buf[PATH_MAX * 3];
 	size_t mp_len = strlen(mp);
+	struct stat st;
 	FILE *tab;
-	int ret = 0;
+	int ret;
+
+	ret = stat(mp, &st);
+	if (ret == -1) {
+		if (errno == ENOENT) {
+			/* Path does not exist */
+			return 0;
+		}
+		ret = 0;
+	}
 
 	if (!mp || !mp_len || mp_len >= PATH_MAX)
 		return 0;