btrfs: replace the BUG_ON in btrfs_del_root_ref with proper error handling

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commit 8289ed9f93 upstream.

I hit the BUG_ON() with generic/475 test case, and to my surprise, all
callers of btrfs_del_root_ref() are already aborting transaction, thus
there is not need for such BUG_ON(), just go to @out label and caller
will properly handle the error.

CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Qu Wenruo 2021-12-01 19:56:17 +08:00 • committed by Greg Kroah-Hartman

parent 477675049c

commit 32d4054cb3

1 changed files with 2 additions and 1 deletions

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fs/btrfs/root-tree.c

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