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Subject[tip:perf/urgent] perf hist: Add error path into hist_entry__init
Commit-ID:  c57589106fd6d996dbf3757708baa4a3fb91850f
Gitweb: https://git.kernel.org/tip/c57589106fd6d996dbf3757708baa4a3fb91850f
Author: Jiri Olsa <jolsa@kernel.org>
AuthorDate: Tue, 5 Mar 2019 16:25:30 +0100
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 6 Mar 2019 18:16:30 -0300

perf hist: Add error path into hist_entry__init

Adding error path into hist_entry__init to unify error handling, so
every new member does not need to free everything else.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jonas Rabenstein <jonas.rabenstein@studium.uni-erlangen.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: nageswara r sastry <nasastry@in.ibm.com>
Link: http://lkml.kernel.org/r/20190305152536.21035-3-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/hist.c | 39 +++++++++++++++++++--------------------
1 file changed, 19 insertions(+), 20 deletions(-)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 669f961316f0..74e307d17c49 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -396,11 +396,8 @@ static int hist_entry__init(struct hist_entry *he,
* adding new entries. So we need to save a copy.
*/
he->branch_info = malloc(sizeof(*he->branch_info));
- if (he->branch_info == NULL) {
- map__zput(he->ms.map);
- free(he->stat_acc);
- return -ENOMEM;
- }
+ if (he->branch_info == NULL)
+ goto err;

memcpy(he->branch_info, template->branch_info,
sizeof(*he->branch_info));
@@ -419,21 +416,8 @@ static int hist_entry__init(struct hist_entry *he,

if (he->raw_data) {
he->raw_data = memdup(he->raw_data, he->raw_size);
-
- if (he->raw_data == NULL) {
- map__put(he->ms.map);
- if (he->branch_info) {
- map__put(he->branch_info->from.map);
- map__put(he->branch_info->to.map);
- free(he->branch_info);
- }
- if (he->mem_info) {
- map__put(he->mem_info->iaddr.map);
- map__put(he->mem_info->daddr.map);
- }
- free(he->stat_acc);
- return -ENOMEM;
- }
+ if (he->raw_data == NULL)
+ goto err_infos;
}
INIT_LIST_HEAD(&he->pairs.node);
thread__get(he->thread);
@@ -444,6 +428,21 @@ static int hist_entry__init(struct hist_entry *he,
he->leaf = true;

return 0;
+
+err_infos:
+ if (he->branch_info) {
+ map__put(he->branch_info->from.map);
+ map__put(he->branch_info->to.map);
+ free(he->branch_info);
+ }
+ if (he->mem_info) {
+ map__put(he->mem_info->iaddr.map);
+ map__put(he->mem_info->daddr.map);
+ }
+err:
+ map__zput(he->ms.map);
+ free(he->stat_acc);
+ return -ENOMEM;
}

static void *hist_entry__zalloc(size_t size)
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