@@ -98,18 +98,18 @@ static int hisi_ptt_process_auxtrace_event(struct perf_session *session,
int fd = perf_data__fd(session->data);
int size = event->auxtrace.size;
void *data = malloc(size);
- off_t data_offset;
int err;
if (!data)
return -errno;
- if (perf_data__is_pipe(session->data)) {
- data_offset = 0;
- } else {
- data_offset = lseek(fd, 0, SEEK_CUR);
- if (data_offset == -1)
+ if (!perf_data__is_pipe(session->data)) {
+ off_t data_offset = lseek(fd, 0, SEEK_CUR);
+
+ if (data_offset == -1) {
+ free(data);
return -errno;
+ }
}
err = readn(fd, data, size);
Fix clang-tidy found potential memory leak and unread value: ``` tools/perf/util/hisi-ptt.c:108:3: warning: Value stored to 'data_offset' is never read [clang-analyzer-deadcode.DeadStores] data_offset = 0; ^ ~ tools/perf/util/hisi-ptt.c:108:3: note: Value stored to 'data_offset' is never read data_offset = 0; ^ ~ tools/perf/util/hisi-ptt.c:112:12: warning: Potential leak of memory pointed to by 'data' [clang-analyzer-unix.Malloc] return -errno; ^ /usr/include/errno.h:38:18: note: expanded from macro 'errno' ^ tools/perf/util/hisi-ptt.c:100:15: note: Memory is allocated void *data = malloc(size); ^~~~~~~~~~~~ tools/perf/util/hisi-ptt.c:104:6: note: Assuming 'data' is non-null if (!data) ^~~~~ tools/perf/util/hisi-ptt.c:104:2: note: Taking false branch if (!data) ^ tools/perf/util/hisi-ptt.c:107:6: note: Assuming the condition is false if (perf_data__is_pipe(session->data)) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ tools/perf/util/hisi-ptt.c:107:2: note: Taking false branch if (perf_data__is_pipe(session->data)) { ^ tools/perf/util/hisi-ptt.c:111:7: note: Assuming the condition is true if (data_offset == -1) ^~~~~~~~~~~~~~~~~ tools/perf/util/hisi-ptt.c:111:3: note: Taking true branch if (data_offset == -1) ^ tools/perf/util/hisi-ptt.c:112:12: note: Potential leak of memory pointed to by 'data' return -errno; ^ /usr/include/errno.h:38:18: note: expanded from macro 'errno' ``` Signed-off-by: Ian Rogers <irogers@google.com> --- tools/perf/util/hisi-ptt.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)