[v1,13/18] perf svghelper: Avoid memory leak

Commit Message

Ian Rogers Sept. 23, 2023, 5:35 a.m. UTC

On success path the sib_core and sib_thr values weren't being
freed. Detected by clang-tidy.

Signed-off-by: Ian Rogers <[e-mail]>
---
 tools/perf/builtin-lock.c   | 1 +
 tools/perf/util/svghelper.c | 5 +++--
 2 files changed, 4 insertions(+), 2 deletions(-)

Patch

diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index d4b22313e5fc..1b40b00c9563 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -2463,6 +2463,7 @@  static int parse_call_stack(const struct option *opt __maybe_unused, const char
 		entry = malloc(sizeof(*entry) + strlen(tok) + 1);
 		if (entry == NULL) {
 			pr_err("Memory allocation failure\n");
+			free(s);
 			return -1;
 		}
 
diff --git a/tools/perf/util/svghelper.c b/tools/perf/util/svghelper.c
index 0e4dc31c6c9c..1892e9b6aa7f 100644
--- a/tools/perf/util/svghelper.c
+++ b/tools/perf/util/svghelper.c
@@ -754,6 +754,7 @@  int svg_build_topology_map(struct perf_env *env)
 	int i, nr_cpus;
 	struct topology t;
 	char *sib_core, *sib_thr;
+	int ret = -1;
 
 	nr_cpus = min(env->nr_cpus_online, MAX_NR_CPUS);
 
@@ -799,11 +800,11 @@  int svg_build_topology_map(struct perf_env *env)
 
 	scan_core_topology(topology_map, &t, nr_cpus);
 
-	return 0;
+	ret = 0;
 
 exit:
 	zfree(&t.sib_core);
 	zfree(&t.sib_thr);
 
-	return -1;
+	return ret;
 }