tree a6162f566e5ec6b0e099a79e7a59005fcfe9be4b
parent 10ed273f5016c582413dfbc468dd084957d847e1
author Jan Kara <jack@suse.cz> 1204669713 -0800
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1204677310 -0800

vfs: fix NULL pointer dereference in fsync_buffers_list()

Fix NULL pointer dereference in fsync_buffers_list() introduced by recent fix
of races in private_list handling.  Since bh->b_assoc_map has been cleared in
__remove_assoc_queue() we should really use original value stored in the
'mapping' variable.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>