linux-kernel - [tip:perf/core] perf probe: Fix not to return non-matched file

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Date:	Fri, 2 Apr 2010 19:08:19 GMT
From:	tip-bot for Masami Hiramatsu <mhiramat@...hat.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, acme@...hat.com, paulus@...ba.org,
	hpa@...or.com, mingo@...hat.com, efault@....de,
	peterz@...radead.org, dle-develop@...ts.sourceforge.net,
	fweisbec@...il.com, tglx@...utronix.de, mhiramat@...hat.com,
	mingo@...e.hu, systemtap@...rces.redhat.com
Subject: [tip:perf/core] perf probe: Fix not to return non-matched file

Commit-ID:  c9e385826d4f1ca5a72005ab8503598f791a8dc0
Gitweb:     http://git.kernel.org/tip/c9e385826d4f1ca5a72005ab8503598f791a8dc0
Author:     Masami Hiramatsu <mhiramat@...hat.com>
AuthorDate: Fri, 2 Apr 2010 12:50:45 -0400
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Fri, 2 Apr 2010 19:35:42 +0200

perf probe: Fix not to return non-matched file

Fix cu_find_realpath() not to return the last file path
if that is not matched to input pattern.

Signed-off-by: Masami Hiramatsu <mhiramat@...hat.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Mike Galbraith <efault@....de>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: systemtap <systemtap@...rces.redhat.com>
Cc: DLE <dle-develop@...ts.sourceforge.net>
LKML-Reference: <20100402165045.23551.47780.stgit@...alhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 tools/perf/util/probe-finder.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index db52ec2..b44132e 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -183,6 +183,8 @@ static const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname)
 		if (strtailcmp(src, fname) == 0)
 			break;
 	}
+	if (i == nfiles)
+		return NULL;
 	return src;
 }
 
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