1 files changed, 2 insertions, 0 deletions

diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c
index 2256e7e23e67..3f1190d18991 100644
--- a/fs/proc_namespace.c
+++ b/fs/proc_namespace.c
@@ -199,6 +199,8 @@ static int show_vfsstat(struct seq_file *m, struct vfsmount *mnt)
         if (sb->s_op->show_devname) {
                 seq_puts(m, "device ");
                 err = sb->s_op->show_devname(m, mnt_path.dentry);
+                if (err)
+                        goto out;
         } else {
                 if (r->mnt_devname) {
                         seq_puts(m, "device ");