1 files changed, 5 insertions, 4 deletions

diff --git a/fs/proc/root.c b/fs/proc/root.c
index 46a15d8a29ca..eed44bfc85db 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -115,12 +115,13 @@ static struct dentry *proc_mount(struct file_system_type *fs_type,
         if (IS_ERR(sb))
                 return ERR_CAST(sb);
 
+        if (!proc_parse_options(options, ns)) {
+                deactivate_locked_super(sb);
+                return ERR_PTR(-EINVAL);
+        }
+
         if (!sb->s_root) {
                 sb->s_flags = flags;
-                if (!proc_parse_options(options, ns)) {
-                        deactivate_locked_super(sb);
-                        return ERR_PTR(-EINVAL);
-                }
                 err = proc_fill_super(sb);
                 if (err) {
                         deactivate_locked_super(sb);