mount: fix goof in last commit; clear errno since we use perror_msg later

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 13 insertions, 12 deletions

diff --git a/util-linux/mount.c b/util-linux/mount.c
index 1ffed9dfd..9d87f766c 100644
--- a/util-linux/mount.c
+++ b/util-linux/mount.c
@@ -1598,6 +1598,8 @@ static int singlemount(struct mntent *mp, int ignore_busy)
         llist_t *fl = NULL;
         struct stat st;
 
+        errno = 0;
+
         vfsflags = parse_mount_options(mp->mnt_opts, &filteropts);
 
         // Treat fstype "auto" as unspecified
@@ -1642,17 +1644,16 @@ static int singlemount(struct mntent *mp, int ignore_busy)
                 int len;
                 char c;
                 len_and_sockaddr *lsa;
-                char *ip, *dotted, *s;
+                char *hostname, *dotted, *ip;
 
-                s = mp->mnt_fsname + 2;
-                len = strcspn(s, "/\\");
-                s += len; // points after hostname
-                if (len == 0 || *s == '\0')
+                hostname = mp->mnt_fsname + 2;
+                len = strcspn(hostname, "/\\");
+                if (len == 0 || hostname[len] == '\0')
                         goto report_error;
-                c = *s;
-                *s = '\0';
-                lsa = host2sockaddr(s, 0);
-                *s = c;
+                c = hostname[len];
+                hostname[len] = '\0';
+                lsa = host2sockaddr(hostname, 0);
+                hostname[len] = c;
                 if (!lsa)
                         goto report_error;
 
@@ -1713,9 +1714,9 @@ static int singlemount(struct mntent *mp, int ignore_busy)
                 // Loop through filesystem types until mount succeeds
                 // or we run out
 
-                // Initialize list of block backed filesystems.  This has to be
-                // done here so that during "mount -a", mounts after /proc shows up
-                // can autodetect.
+                // Initialize list of block backed filesystems.
+                // This has to be done here so that during "mount -a",
+                // mounts after /proc shows up can autodetect.
                 if (!fslist) {
                         fslist = get_block_backed_filesystems();
                         if (ENABLE_FEATURE_CLEAN_UP && fslist)