[PATCH] ubifs: Fix WARN_ON logic in exit path

From: Richard Weinberger
Date: Sat Oct 13 2018 - 04:19:49 EST


ubifs_assert() is not WARN_ON(), so we have to invert
the checks.
Randy faced this warning with UBIFS being a module, since
most users use UBIFS as builtin because UBIFS is the rootfs
nobody noticed so far. :-(
Including me.

Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Fixes: 54169ddd382d ("ubifs: Turn two ubifs_assert() into a WARN_ON()")
Signed-off-by: Richard Weinberger <richard@xxxxxx>
---
Greg,

can you please take this patch directly?
It fixes a brown paper bug which was introduced in rc1, I'd like to avoid
having it in a release and going the -stable path.

Thanks,
//richard
---
fs/ubifs/super.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index bf000c8aeffb..fec62e9dfbe6 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -2337,8 +2337,8 @@ late_initcall(ubifs_init);

static void __exit ubifs_exit(void)
{
- WARN_ON(list_empty(&ubifs_infos));
- WARN_ON(atomic_long_read(&ubifs_clean_zn_cnt) == 0);
+ WARN_ON(!list_empty(&ubifs_infos));
+ WARN_ON(atomic_long_read(&ubifs_clean_zn_cnt) != 0);

dbg_debugfs_exit();
ubifs_compressors_exit();
--
2.19.1