[PATCH] cifs: escape spaces in share names

[Maciek Borzecki]

Commit 653a5efb849a ("cifs: update super_operations to show_devname")
introduced the display of devname for cifs mounts. However, when mounting
a share which has a whitespace in the name, that exact share name is also
displayed in mountinfo. Make sure that all whitespace is escaped.

Signed-off-by: Maciek Borzecki <maciek.borze...@gmail.com>
---
 fs/cifs/cifsfs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 
099ad9f3660bb28db1b6a9aea9538282b41c6455..3c6cb85b95e207df222248f10cc9df937cdda24e
 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -476,7 +476,8 @@ static int cifs_show_devname(struct seq_file *m, struct 
dentry *root)
                seq_puts(m, "none");
        else {
                convert_delimiter(devname, '/');
-               seq_puts(m, devname);
+               /* escape all spaces in share names */
+               seq_escape(m, devname, " ");
                kfree(devname);
        }
        return 0;
-- 
2.31.1