perf session: Destructors should accept NULL
And do nothing, just like free(), to avoid having to test it in callers,
usually in error paths.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-dyuupcj0hnoyt96vma8b3anv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index dfedf09..43be0c5 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -178,6 +178,8 @@
void perf_session__delete(struct perf_session *session)
{
+ if (session == NULL)
+ return;
auxtrace__free(session);
auxtrace_index__free(&session->auxtrace_index);
perf_session__destroy_kernel_maps(session);