From 48be1364dd387e375e1274b76af986cb8747be2c Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Fri, 8 Dec 2023 17:39:28 +0100 Subject: [PATCH] efivarfs: Free s_fs_info on unmount [ Upstream commit 547713d502f7b4b8efccd409cff84d731a23853b ] Now that we allocate a s_fs_info struct on fs context creation, we should ensure that we free it again when the superblock goes away. Fixes: 5329aa5101f7 ("efivarfs: Add uid/gid mount options") Signed-off-by: Ard Biesheuvel Signed-off-by: Sasha Levin --- fs/efivarfs/super.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c index 05c0169..d59d967 100644 --- a/fs/efivarfs/super.c +++ b/fs/efivarfs/super.c @@ -299,6 +299,8 @@ static int efivarfs_init_fs_context(struct fs_context *fc) static void efivarfs_kill_sb(struct super_block *sb) { + struct efivarfs_fs_info *sfi = sb->s_fs_info; + kill_litter_super(sb); if (!efivar_is_available()) @@ -306,6 +308,7 @@ static void efivarfs_kill_sb(struct super_block *sb) /* Remove all entries and destroy */ efivar_entry_iter(efivarfs_destroy, &efivarfs_list, NULL); + kfree(sfi); } static struct file_system_type efivarfs_type = { -- 2.7.4