[PATCH 3.16 150/366] jffs2_kill_sb(): deal with failed allocations

Ben Hutchings
2018-10-14T23:11:42Z

From: Al Viro <viro@zeniv.linux.org.uk>

commit c66b23c2840446a82c389e4cb1a12eb2a71fa2e4 upstream.

jffs2_fill_super() might fail to allocate jffs2_sb_info;
jffs2_kill_sb() must survive that.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/jffs2/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -345,7 +345,7 @@ static void jffs2_put_super (struct supe
static void jffs2_kill_sb(struct super_block *sb)
{
struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
- if (!(sb->s_flags & MS_RDONLY))
+ if (c && !(sb->s_flags & MS_RDONLY))
jffs2_stop_garbage_collect_thread(c);
kill_mtd_super(sb);
kfree(c);