linux-kernel - [PATCH 1/2] trace_syscalls: return unhandled trace type on warn

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Date:	Fri, 20 Nov 2015 15:03:08 +0300
From:	Dmitry Safonov <0x7f454c46@...il.com>
To:	rostedt@...dmis.org, mingo@...hat.com
Cc:	linux-kernel@...r.kernel.org, Dmitry Safonov <0x7f454c46@...il.com>
Subject: [PATCH 1/2] trace_syscalls: return unhandled trace type on warn

Having as an example print_syscall_exit(), return TRACE_TYPE_UNHANDLED
if entry type differs from syscall's metadata type.

Signed-off-by: Dmitry Safonov <0x7f454c46@...il.com>
---
 kernel/trace/trace_syscalls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 0655afbea83f59..b9d4c3cc60aeba 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -126,7 +126,7 @@ print_syscall_enter(struct trace_iterator *iter, int flags,
 
 	if (entry->enter_event->event.type != ent->type) {
 		WARN_ON_ONCE(1);
-		goto end;
+		return TRACE_TYPE_UNHANDLED;
 	}
 
 	trace_seq_printf(s, "%s(", entry->name);
-- 
2.6.2

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