perf annotate: Reuse path from the result of addr2line

In the symbol__get_source_line(), path and src_line->path will have same
value, but they were allocated separately, and leaks one.  Just share
path to src_line->path.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378876173-13363-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 1 insertions, 5 deletions

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 7eae5488ecea..c6fd1870f278 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1143,11 +1143,7 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map,
                 if (getline(&path, &line_len, fp) < 0 || !line_len)
                         goto next_close;
 
-                src_line->path = malloc(sizeof(char) * line_len + 1);
-                if (!src_line->path)
-                        goto next_close;
-
-                strcpy(src_line->path, path);
+                src_line->path = path;
                 insert_source_line(&tmp_root, src_line);
 
         next_close: