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authorJiri Olsa <jolsa@kernel.org>2020-07-19 20:13:02 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2020-07-30 12:01:49 +0200
commit60e10c0037d0159f886c8592b761ee31ab3b7e21 (patch)
tree9015b9607cf8f4e6f002456bff042faf371f2fa2 /tools/perf/util
parentperf test: Ensure sample_period is set libpfm4 events (diff)
downloadlinux-60e10c0037d0159f886c8592b761ee31ab3b7e21.tar.xz
linux-60e10c0037d0159f886c8592b761ee31ab3b7e21.zip
perf metric: Fix memory leak in expr__add_id function
Arnaldo found that we don't release value data in case the hashmap__set fails. Releasing it in case of an error. Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: John Garry <john.garry@huawei.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Clarke <pc@us.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20200719181320.785305-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
-rw-r--r--tools/perf/util/expr.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c
index 5d05f9765ed8..578a173d4873 100644
--- a/tools/perf/util/expr.c
+++ b/tools/perf/util/expr.c
@@ -47,6 +47,8 @@ int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val)
}
ret = hashmap__set(&ctx->ids, id, data_ptr,
(const void **)&old_key, (void **)&old_data);
+ if (ret)
+ free(data_ptr);
free(old_key);
free(old_data);
return ret;