From: Arnaldo Carvalho de Melo <a...@redhat.com> Its perfectly fine to call free(NULL), so no need to clutter the source code with all those superfluous testing.
Cc: Adrian Hunter <adrian.hun...@intel.com> Cc: David Ahern <dsah...@gmail.com> Cc: Frederic Weisbecker <fweis...@gmail.com> Cc: Jiri Olsa <jo...@redhat.com> Cc: Mike Galbraith <efa...@gmx.de> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Paul Mackerras <pau...@samba.org> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Stephane Eranian <eran...@google.com> Link: http://lkml.kernel.org/n/tip-uux5wpvevlerd42gqer13...@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/builtin-kvm.c | 4 +- tools/perf/ui/browsers/scripts.c | 3 +- tools/perf/util/header.c | 6 +-- tools/perf/util/probe-event.c | 62 ++++++++-------------- tools/perf/util/probe-finder.c | 12 ++--- .../perf/util/scripting-engines/trace-event-perl.c | 3 +- .../util/scripting-engines/trace-event-python.c | 3 +- 7 files changed, 31 insertions(+), 62 deletions(-) diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index 5a80da6ba413..a6ec1052c291 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -1158,9 +1158,7 @@ out: if (kvm->timerfd >= 0) close(kvm->timerfd); - if (pollfds) - free(pollfds); - + free(pollfds); return err; } diff --git a/tools/perf/ui/browsers/scripts.c b/tools/perf/ui/browsers/scripts.c index d63c68ea02a8..402d2bd30b09 100644 --- a/tools/perf/ui/browsers/scripts.c +++ b/tools/perf/ui/browsers/scripts.c @@ -173,8 +173,7 @@ int script_browse(const char *script_opt) if (script.b.width > AVERAGE_LINE_LEN) script.b.width = AVERAGE_LINE_LEN; - if (line) - free(line); + free(line); pclose(fp); script.nr_lines = nr_entries; diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 61c54213704b..10730b0af804 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -1232,10 +1232,8 @@ static void free_event_desc(struct perf_evsel *events) return; for (evsel = events; evsel->attr.size; evsel++) { - if (evsel->name) - free(evsel->name); - if (evsel->id) - free(evsel->id); + free(evsel->name); + free(evsel->id); } free(events); diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 72b56aef105e..095a98ec7444 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -401,9 +401,7 @@ static int add_module_to_probe_trace_events(struct probe_trace_event *tevs, } } - if (tmp) - free(tmp); - + free(tmp); return ret; } @@ -1382,8 +1380,7 @@ static char *synthesize_perf_probe_point(struct perf_probe_point *pp) error: pr_debug("Failed to synthesize perf probe point: %s\n", strerror(-ret)); - if (buf) - free(buf); + free(buf); return NULL; } @@ -1584,34 +1581,25 @@ void clear_perf_probe_event(struct perf_probe_event *pev) struct perf_probe_arg_field *field, *next; int i; - if (pev->event) - free(pev->event); - if (pev->group) - free(pev->group); - if (pp->file) - free(pp->file); - if (pp->function) - free(pp->function); - if (pp->lazy_line) - free(pp->lazy_line); + free(pev->event); + free(pev->group); + free(pp->file); + free(pp->function); + free(pp->lazy_line); + for (i = 0; i < pev->nargs; i++) { - if (pev->args[i].name) - free(pev->args[i].name); - if (pev->args[i].var) - free(pev->args[i].var); - if (pev->args[i].type) - free(pev->args[i].type); + free(pev->args[i].name); + free(pev->args[i].var); + free(pev->args[i].type); field = pev->args[i].field; while (field) { next = field->next; - if (field->name) - free(field->name); + free(field->name); free(field); field = next; } } - if (pev->args) - free(pev->args); + free(pev->args); memset(pev, 0, sizeof(*pev)); } @@ -1620,21 +1608,14 @@ static void clear_probe_trace_event(struct probe_trace_event *tev) struct probe_trace_arg_ref *ref, *next; int i; - if (tev->event) - free(tev->event); - if (tev->group) - free(tev->group); - if (tev->point.symbol) - free(tev->point.symbol); - if (tev->point.module) - free(tev->point.module); + free(tev->event); + free(tev->group); + free(tev->point.symbol); + free(tev->point.module); for (i = 0; i < tev->nargs; i++) { - if (tev->args[i].name) - free(tev->args[i].name); - if (tev->args[i].value) - free(tev->args[i].value); - if (tev->args[i].type) - free(tev->args[i].type); + free(tev->args[i].name); + free(tev->args[i].value); + free(tev->args[i].type); ref = tev->args[i].ref; while (ref) { next = ref->next; @@ -1642,8 +1623,7 @@ static void clear_probe_trace_event(struct probe_trace_event *tev) ref = next; } } - if (tev->args) - free(tev->args); + free(tev->args); memset(tev, 0, sizeof(*tev)); } diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index 7db7e05ccb89..8c087359b7ce 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -1414,10 +1414,8 @@ int debuginfo__find_available_vars_at(struct debuginfo *dbg, if (ret < 0) { /* Free vlist for error */ while (af.nvls--) { - if (af.vls[af.nvls].point.symbol) - free(af.vls[af.nvls].point.symbol); - if (af.vls[af.nvls].vars) - strlist__delete(af.vls[af.nvls].vars); + free(af.vls[af.nvls].point.symbol); + strlist__delete(af.vls[af.nvls].vars); } free(af.vls); *vls = NULL; @@ -1524,10 +1522,8 @@ post: if (fname) { ppt->file = strdup(fname); if (ppt->file == NULL) { - if (ppt->function) { - free(ppt->function); - ppt->function = NULL; - } + free(ppt->function); + ppt->function = NULL; ret = -ENOMEM; goto end; } diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c index 3773c4841cab..e108207c5de0 100644 --- a/tools/perf/util/scripting-engines/trace-event-perl.c +++ b/tools/perf/util/scripting-engines/trace-event-perl.c @@ -194,8 +194,7 @@ static void define_event_symbols(struct event_format *event, zero_flag_atom = 0; break; case PRINT_FIELD: - if (cur_field_name) - free(cur_field_name); + free(cur_field_name); cur_field_name = strdup(args->field.name); break; case PRINT_FLAGS: diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c index b258de6357ac..cd9774df3750 100644 --- a/tools/perf/util/scripting-engines/trace-event-python.c +++ b/tools/perf/util/scripting-engines/trace-event-python.c @@ -161,8 +161,7 @@ static void define_event_symbols(struct event_format *event, zero_flag_atom = 0; break; case PRINT_FIELD: - if (cur_field_name) - free(cur_field_name); + free(cur_field_name); cur_field_name = strdup(args->field.name); break; case PRINT_FLAGS: -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
