diff --git a/fs/afs/dynroot.c b/fs/afs/dynroot.c
index 07484b5a3bbb..af1689d1f32e 100644
--- a/fs/afs/dynroot.c
+++ b/fs/afs/dynroot.c
@@ -261,8 +261,7 @@ int afs_dynroot_populate(struct super_block *sb)
 	struct afs_net *net = afs_sb2net(sb);
 	int ret;
 
-	if (mutex_lock_interruptible(&net->proc_cells_lock) < 0)
-		return -ERESTARTSYS;
+	mutex_lock(&net->proc_cells_lock);
 
 	net->dynroot_sb = sb;
 	hlist_for_each_entry(cell, &net->proc_cells, proc_link) {