diff options
| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2015-11-18 09:40:12 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-11-19 19:19:17 +0300 |
| commit | 05c8d802fa52ef17dbcce21c38b72b4a313eb036 (patch) | |
| tree | 0b1f57e71350b3a98af95d06966e684722c8efe7 /tools/perf/util/probe-finder.c | |
| parent | 5bcf2fe05318deb6fec209b4028d8a31f9f47221 (diff) | |
| download | linux-05c8d802fa52ef17dbcce21c38b72b4a313eb036.tar.xz | |
perf probe: Fix to free temporal Dwarf_Frame
Since dwarf_cfi_addrframe returns malloc'd Dwarf_Frame object, it has to
be freed after it is used.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20151118064011.30709.65674.stgit@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/probe-finder.c')
| -rw-r--r-- | tools/perf/util/probe-finder.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index 05012bb178d7..1cab05a3831e 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -683,21 +683,24 @@ static int call_probe_finder(Dwarf_Die *sc_die, struct probe_finder *pf) ret = dwarf_getlocation_addr(&fb_attr, pf->addr, &pf->fb_ops, &nops, 1); if (ret <= 0 || nops == 0) { pf->fb_ops = NULL; + ret = 0; #if _ELFUTILS_PREREQ(0, 142) } else if (nops == 1 && pf->fb_ops[0].atom == DW_OP_call_frame_cfa && pf->cfi != NULL) { - Dwarf_Frame *frame; + Dwarf_Frame *frame = NULL; if (dwarf_cfi_addrframe(pf->cfi, pf->addr, &frame) != 0 || dwarf_frame_cfa(frame, &pf->fb_ops, &nops) != 0) { pr_warning("Failed to get call frame on 0x%jx\n", (uintmax_t)pf->addr); - return -ENOENT; + ret = -ENOENT; } + free(frame); #endif } /* Call finder's callback handler */ - ret = pf->callback(sc_die, pf); + if (ret >= 0) + ret = pf->callback(sc_die, pf); /* *pf->fb_ops will be cached in libdw. Don't free it. */ pf->fb_ops = NULL; |