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authorPaul Mundt <lethal@linux-sh.org>2006-12-08 17:46:29 +0900
committerPaul Mundt <lethal@linux-sh.org>2006-12-12 08:42:08 +0900
commitb652c23cb0f7808bedb5442c416d91705a465c67 (patch)
treed18dbf1fd11c5ad08e7dc1ef2cb97a774bb92d45 /arch/sh/kernel/process.c
parentdc34d312c7b25d5d0f54c16d143a9526936e5d38 (diff)
downloadop-kernel-dev-b652c23cb0f7808bedb5442c416d91705a465c67.zip
op-kernel-dev-b652c23cb0f7808bedb5442c416d91705a465c67.tar.gz
sh: Fix get_wchan().
Some time ago the schedule frame size changed and we failed to reflect this in get_wchan() at the time. This first popped up as a problem on SH7751R where schedule_frame ended up being unaligned and generating an unaligned trap. This fixes it up again.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/process.c')
-rw-r--r--arch/sh/kernel/process.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 7347f6a..486c06e 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -470,9 +470,10 @@ unsigned long get_wchan(struct task_struct *p)
*/
pc = thread_saved_pc(p);
if (in_sched_functions(pc)) {
- schedule_frame = ((unsigned long *)(long)p->thread.sp)[1];
- return (unsigned long)((unsigned long *)schedule_frame)[1];
+ schedule_frame = (unsigned long)p->thread.sp;
+ return ((unsigned long *)schedule_frame)[21];
}
+
return pc;
}
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