In case of retrying fill_super with skip_recovery, s_encoding for casefold would not be loaded again even though it's already been freed because it's not NULL. Set NULL after free to prevent double freeing when unmount. Fixes: eca4873ee1b6 ("f2fs: Use generic casefolding support") Signed-off-by: Hyeongseok Kim <hyeongseok@xxxxxxxxx> --- fs/f2fs/super.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 00eff2f51807..fef22e476c52 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -3918,6 +3918,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) #ifdef CONFIG_UNICODE utf8_unload(sb->s_encoding); + sb->s_encoding = NULL; #endif free_options: #ifdef CONFIG_QUOTA -- 2.27.0.83.g0313f36