tree 4aaf7f05d03a5757b6c128d433c220b55d89fd88
parent 0f4da216b8c3c35c90ecd18e1899c6f125957c2b
author Tristan Ye <tristan.ye@oracle.com> 1284084993 +0800
committer Joel Becker <joel.becker@oracle.com> 1284135570 -0700

Ocfs2: Handle empty list in lockres_seq_start() for dlmdebug.c

This patch tries to handle the case in which list 'dlm->tracking_list' is
empty, to avoid accessing an invalid pointer. It fixes the following oops:

http://oss.oracle.com/bugzilla/show_bug.cgi?id=1287

Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>