X-Git-Url: http://git.samba.org/samba.git/?a=blobdiff_plain;f=arch%2Fparisc%2Fkernel%2Fprocess.c;h=b80e02a4d81de3d193ec1faae269b7614a783cf1;hb=13d93924f13e1989cf27375cd46451475bc70d1d;hp=0dd3847f494c390f78563ea2c450d7e90cfa918d;hpb=9f6632d6290785caf9e9f874c0a0cfaf2c178e59;p=sfrench%2Fcifs-2.6.git

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 0dd3847f494c..b80e02a4d81d 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -38,6 +38,7 @@
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
+#include <linux/fs.h>
 #include <linux/module.h>
 #include <linux/personality.h>
 #include <linux/ptrace.h>
@@ -381,6 +382,10 @@ get_wchan(struct task_struct *p)
 	struct unwind_frame_info info;
 	unsigned long ip;
 	int count = 0;
+
+	if (!p || p == current || p->state == TASK_RUNNING)
+		return 0;
+
 	/*
 	 * These bracket the sleeping functions..
 	 */