[tip:perf/core] perf probe: Fix to close dwarf when failing to analyze it

[tip-bot for Masami Hiramatsu]

Commit-ID:  75ec5a245c7763c397f31ec8964d0a46c54a7386
Gitweb:     http://git.kernel.org/tip/75ec5a245c7763c397f31ec8964d0a46c54a7386
Author:     Masami Hiramatsu <mhiramat@xxxxxxxxxx>
AuthorDate: Fri, 2 Apr 2010 12:50:59 -0400
Committer:  Ingo Molnar <mingo@xxxxxxx>
CommitDate: Fri, 2 Apr 2010 19:35:44 +0200

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@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: systemtap <systemtap@xxxxxxxxxxxxxxxxxx>
Cc: DLE <dle-develop@xxxxxxxxxxxxxxxxxxxxx>
LKML-Reference: <20100402165059.23551.95587.stgit@xxxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
 tools/perf/util/probe-finder.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 59b0115..a851377 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);
--
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