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perf probe: Fix get_real_path to free allocated memory in error path 

Fix get_real_path to free allocated memory when comp_dir is used for
complementing path and getting an error.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naohiro Aota <naota@elisp.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20150226082504.28125.74506.stgit@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Masami Hiramatsu 2015-02-26 17:25:04 +09:00 committed by Arnaldo Carvalho de Melo
parent 9aaf5a5f47
commit eb47cb2eb2
1 changed files with 3 additions and 1 deletions
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4
tools/perf/util/probe-event.c
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@ -549,9 +549,11 @@ static int get_real_path(const char *raw_path, const char *comp_dir,
if (access(*new_path, R_OK) == 0)
return 0;
if (!symbol_conf.source_prefix)
if (!symbol_conf.source_prefix) {
/* In case of searching comp_dir, don't retry */
zfree(new_path);
return -errno;
}
switch (errno) {
case ENAMETOOLONG: