From: Masami Hiramatsu <mhiramat@redhat.com>
Date: Fri, 2 Apr 2010 16:50:59 +0000 (-0400)
Subject: perf probe: Fix to close dwarf when failing to analyze it
X-Git-Tag: firefly_0821_release~9833^2~1617^2~183
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=75ec5a245c7763c397f31ec8964d0a46c54a7386;p=firefly-linux-kernel-4.4.55.git

perf probe: Fix to close dwarf when failing to analyze it

Fix to close libdw routine when failing to analyze it in
find_perf_probe_point().

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
LKML-Reference: <20100402165059.23551.95587.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 59b0115de30a..a8513772df08 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -818,8 +818,10 @@ int find_perf_probe_point(int fd, unsigned long addr,
 		return -ENOENT;
 
 	/* Find cu die */
-	if (!dwarf_addrdie(dbg, (Dwarf_Addr)addr, &cudie))
-		return -EINVAL;
+	if (!dwarf_addrdie(dbg, (Dwarf_Addr)addr, &cudie)) {
+		ret = -EINVAL;
+		goto end;
+	}
 
 	/* Find a corresponding line */
 	line = dwarf_getsrc_die(&cudie, (Dwarf_Addr)addr);