tree d576d48a13f4c31aef846dd7f178f3159c38e138
parent d06bf1d252fe16f5f0d13e04da7a9913420aa1cf
author Duane Griffin <duaneg@dghda.com> 1216975579 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1217008412 -0700

jbd: replace potentially false assertion with if block

If an error occurs during jbd cache initialisation it is possible for the
journal_head_cache to be NULL when journal_destroy_journal_head_cache is
called.  Replace the J_ASSERT with an if block to handle the situation
correctly.

Note that even with this fix things will break badly if jbd is statically
compiled in and cache initialisation fails.

Signed-off-by: Duane Griffin <duaneg@dghda.com
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>