Fixes valgrind complaint:
=3118== Syscall param write(buf) points to uninitialised byte(s)
==3118== at 0x4E3F5B0: __write_nocancel (in /lib64/libpthread-2.14.90.so)
==3118== by 0x42F0EB: process_synthesized_event (builtin-record.c:89)
==3118== by 0x44E81C: perf_event__synthesize_mmap_events (event.c:230)
==3118== by 0x44F27C: perf_event__synthesize_threads (event.c:307)
==3118== by 0x42FEEA: cmd_record (builtin-record.c:530)
==3118== by 0x419D22: run_builtin (perf.c:319)
==3118== by 0x4195A2: main (perf.c:376)
Signed-off-by: David Ahern <dsah...@gmail.com>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Namhyung Kim <namhy...@kernel.org>
---
tools/perf/util/event.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 5cd13d7..556b999 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -316,11 +316,11 @@ int perf_event__synthesize_thread_map(struct perf_tool
*tool,
union perf_event *comm_event, *mmap_event;
int err = -1, thread, j;
- comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size);
+ comm_event = zalloc(sizeof(comm_event->comm) + machine->id_hdr_size);
if (comm_event == NULL)
goto out;
- mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size);
+ mmap_event = zalloc(sizeof(mmap_event->mmap) + machine->id_hdr_size);
if (mmap_event == NULL)
goto out_free_comm;
@@ -375,11 +375,11 @@ int perf_event__synthesize_threads(struct perf_tool *tool,
union perf_event *comm_event, *mmap_event;
int err = -1;
- comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size);
+ comm_event = zalloc(sizeof(comm_event->comm) + machine->id_hdr_size);
if (comm_event == NULL)
goto out;
- mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size);
+ mmap_event = zalloc(sizeof(mmap_event->mmap) + machine->id_hdr_size);
if (mmap_event == NULL)
goto out_free_comm;
--
1.7.10.1
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