Commit-ID: e1446551e60a7773c3acf3c55bb9449d70127882 Gitweb: http://git.kernel.org/tip/e1446551e60a7773c3acf3c55bb9449d70127882 Author: Arnaldo Carvalho de Melo <a...@redhat.com> AuthorDate: Wed, 22 Jun 2016 10:02:16 -0300 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Wed, 22 Jun 2016 10:02:16 -0300
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.hun...@intel.com> Cc: David Ahern <dsah...@gmail.com> Cc: Jiri Olsa <jo...@kernel.org> Cc: Masami Hiramatsu <mhira...@kernel.org> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Wang Nan <wangn...@huawei.com> Link: http://lkml.kernel.org/n/tip-dyuupcj0hnoyt96vma8b3...@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/builtin-buildid-cache.c | 3 +-- tools/perf/builtin-diff.c | 4 +--- tools/perf/builtin-kvm.c | 3 +-- tools/perf/util/session.c | 2 ++ 4 files changed, 5 insertions(+), 7 deletions(-) diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c index d75bded..2cbec65 100644 --- a/tools/perf/builtin-buildid-cache.c +++ b/tools/perf/builtin-buildid-cache.c @@ -419,8 +419,7 @@ int cmd_buildid_cache(int argc, const char **argv, pr_warning("Couldn't add %s\n", kcore_filename); out: - if (session) - perf_session__delete(session); + perf_session__delete(session); return ret; } diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c index 8b6735f..eac0b11 100644 --- a/tools/perf/builtin-diff.c +++ b/tools/perf/builtin-diff.c @@ -756,9 +756,7 @@ static int __cmd_diff(void) out_delete: data__for_each_file(i, d) { - if (d->session) - perf_session__delete(d->session); - + perf_session__delete(d->session); data__free(d); } diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index ad46e91..8f8f90e 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -1426,8 +1426,7 @@ static int kvm_events_live(struct perf_kvm_stat *kvm, err = kvm_events_live_report(kvm); out: - if (kvm->session) - perf_session__delete(kvm->session); + perf_session__delete(kvm->session); kvm->session = NULL; perf_evlist__delete(kvm->evlist); 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 @@ static void perf_session__delete_threads(struct perf_session *session) 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);
