From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 8 Sep 2008 09:12:33 +0000 (+0900)
Subject: sh: kprobes: Default to NOTIFY_DONE for unhandled debug traps.
X-Git-Tag: v2.6.28-rc1~99^2~69
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ee386de77419f9fedf206d84c4d4b2de0ead5bcb;p=karo-tx-linux.git

sh: kprobes: Default to NOTIFY_DONE for unhandled debug traps.

Presently this is doing a force_sig() SIGTRAP, which is already taken
care of in the generic code if no one asserts NOTIFY_STOP. Switch the
default return to NOTIFY_DONE in the case of unhandled traps, so that
the same trap may pass through to other users on the same die chain.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

diff --git a/arch/sh/kernel/kprobes.c b/arch/sh/kernel/kprobes.c
index fdd049e9ad86..75accf9b4209 100644
--- a/arch/sh/kernel/kprobes.c
+++ b/arch/sh/kernel/kprobes.c
@@ -474,7 +474,7 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
 				ret = NOTIFY_STOP;
 			} else {
 				/* Not a kprobe trap */
-				force_sig(SIGTRAP, current);
+				ret = NOTIFY_DONE;
 			}
 		} else {
 			p = get_kprobe(addr);