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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-07-04 12:06:20 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-07-09 10:13:27 -0300 |
| commit | d8f9da240495b50766239410f9b0c715ca506a67 (patch) | |
| tree | a9fb3abcc48a72cd34a9299f081aab497325711f /tools/perf/util/stat-shadow.c | |
| parent | 7f7c536f23e6afaa5d5d4b0e0958b0be8922491f (diff) | |
| download | lwn-d8f9da240495b50766239410f9b0c715ca506a67.tar.gz lwn-d8f9da240495b50766239410f9b0c715ca506a67.zip | |
perf tools: Use zfree() where applicable
In places where the equivalent was already being done, i.e.:
free(a);
a = NULL;
And in placs where struct members are being freed so that if we have
some erroneous reference to its struct, then accesses to freed members
will result in segfaults, which we can detect faster than use after free
to areas that may still have something seemingly valid.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-jatyoofo5boc1bsvoig6bb6i@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/stat-shadow.c')
| -rw-r--r-- | tools/perf/util/stat-shadow.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index cb891e5c2969..656065af4971 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -8,6 +8,7 @@ #include "evlist.h" #include "expr.h" #include "metricgroup.h" +#include <linux/zalloc.h> /* * AGGR_GLOBAL: Use CPU 0 @@ -775,7 +776,7 @@ static void generic_metric(struct perf_stat_config *config, print_metric(config, ctxp, NULL, NULL, "", 0); for (i = 1; i < pctx.num_ids; i++) - free((void *)pctx.ids[i].name); + zfree(&pctx.ids[i].name); } void perf_stat__print_shadow_stats(struct perf_stat_config *config, |