diff options
| author | Ian Rogers <irogers@google.com> | 2021-11-18 10:12:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-08 11:01:10 +0300 |
| commit | b380d09e44e8479e71e3ae8446b515a5b3166244 (patch) | |
| tree | a7eaecc1d7e46d135598c6ebc938702e3d93c650 /tools/perf | |
| parent | 57247f7035393c12a5819c589d52b6ee3edde8aa (diff) | |
| download | linux-b380d09e44e8479e71e3ae8446b515a5b3166244.tar.xz | |
perf hist: Fix memory leak of a perf_hpp_fmt
[ Upstream commit 0ca1f534a776cc7d42f2c33da4732b74ec2790cd ]
perf_hpp__column_unregister() removes an entry from a list but doesn't
free the memory causing a memory leak spotted by leak sanitizer.
Add the free while at the same time reducing the scope of the function
to static.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20211118071247.2140392-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/ui/hist.c | 28 | ||||
| -rw-r--r-- | tools/perf/util/hist.h | 1 |
2 files changed, 14 insertions, 15 deletions
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c index f73675500061..9ae316445f04 100644 --- a/tools/perf/ui/hist.c +++ b/tools/perf/ui/hist.c @@ -472,6 +472,18 @@ struct perf_hpp_list perf_hpp_list = { #undef __HPP_SORT_ACC_FN #undef __HPP_SORT_RAW_FN +static void fmt_free(struct perf_hpp_fmt *fmt) +{ + /* + * At this point fmt should be completely + * unhooked, if not it's a bug. + */ + BUG_ON(!list_empty(&fmt->list)); + BUG_ON(!list_empty(&fmt->sort_list)); + + if (fmt->free) + fmt->free(fmt); +} void perf_hpp__init(void) { @@ -535,9 +547,10 @@ void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list, list_add(&format->sort_list, &list->sorts); } -void perf_hpp__column_unregister(struct perf_hpp_fmt *format) +static void perf_hpp__column_unregister(struct perf_hpp_fmt *format) { list_del_init(&format->list); + fmt_free(format); } void perf_hpp__cancel_cumulate(void) @@ -609,19 +622,6 @@ next: } -static void fmt_free(struct perf_hpp_fmt *fmt) -{ - /* - * At this point fmt should be completely - * unhooked, if not it's a bug. - */ - BUG_ON(!list_empty(&fmt->list)); - BUG_ON(!list_empty(&fmt->sort_list)); - - if (fmt->free) - fmt->free(fmt); -} - void perf_hpp__reset_output_field(struct perf_hpp_list *list) { struct perf_hpp_fmt *fmt, *tmp; diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h index 479273130794..ecce30f086de 100644 --- a/tools/perf/util/hist.h +++ b/tools/perf/util/hist.h @@ -361,7 +361,6 @@ enum { }; void perf_hpp__init(void); -void perf_hpp__column_unregister(struct perf_hpp_fmt *format); void perf_hpp__cancel_cumulate(void); void perf_hpp__setup_output_field(struct perf_hpp_list *list); void perf_hpp__reset_output_field(struct perf_hpp_list *list); |