From: robert.read <robert.read>
Date: Fri, 3 Jul 2009 16:13:40 +0000 (+0000)
Subject: Branch HEAD
X-Git-Tag: v1_9_220~56
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=c888000a126c17c55449b89d7e6ebd6ebd0ff772;hp=36b52838433ad24872149e6b83dd0a75ae77b61f;p=fs%2Flustre-release.git

Branch HEAD
b=200067
i=jay
i=rread
a=fanyong

Check tsk before using it.
---

diff --git a/libcfs/libcfs/linux/linux-debug.c b/libcfs/libcfs/linux/linux-debug.c
index 7bcb5d6..f08be51 100644
--- a/libcfs/libcfs/linux/linux-debug.c
+++ b/libcfs/libcfs/linux/linux-debug.c
@@ -263,6 +263,8 @@ void libcfs_debug_dumpstack(struct task_struct *tsk)
 #elif defined(HAVE_DUMP_TRACE)
         /* dump_stack() */
         /* show_trace() */
+        if (tsk == NULL)
+                tsk = current;
 	printk("Pid: %d, comm: %.20s\n", tsk->pid, tsk->comm);
         /* show_trace_log_lvl() */
 	printk("\nCall Trace:\n");