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 (file)
--- 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");