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tools lib traceevent: Cleanup realloc use 

The if branch is completely unnecessary since 'realloc' can handle
NULL pointers for the first parameter.

This patch is just an adoption of Ulrich Drepper's recent patch on
perf tools.

Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ulrich Drepper <drepper@gmail.com>
Link: http://lkml.kernel.org/r/1335230984-7613-1-git-send-email-namhyung.kim@lge.com
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Namhyung Kim 2012-04-24 10:29:44 +09:00 committed by Namhyung Kim
parent c9bbabe32a
commit f6ced60fb6
2 changed files with 10 additions and 22 deletions
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8
tools/lib/traceevent/event-parse.c
View File

@ -633,12 +633,8 @@ static void add_event(struct pevent *pevent, struct event_format *event)
{
int i;
if (!pevent->events)
pevent->events = malloc_or_die(sizeof(event));
else
pevent->events =
realloc(pevent->events, sizeof(event) *
(pevent->nr_events + 1));
pevent->events = realloc(pevent->events, sizeof(event) *
(pevent->nr_events + 1));
if (!pevent->events)
die("Can not allocate events");

24
tools/lib/traceevent/parse-filter.c
View File

@ -148,17 +148,11 @@ add_filter_type(struct event_filter *filter, int id)
if (filter_type)
return filter_type;
if (!filter->filters)
filter->event_filters =
malloc_or_die(sizeof(*filter->event_filters));
else {
filter->event_filters =
realloc(filter->event_filters,
sizeof(*filter->event_filters) *
(filter->filters + 1));
if (!filter->event_filters)
die("Could not allocate filter");
}
filter->event_filters = realloc(filter->event_filters,
sizeof(*filter->event_filters) *
(filter->filters + 1));
if (!filter->event_filters)
die("Could not allocate filter");
for (i = 0; i < filter->filters; i++) {
if (filter->event_filters[i].event_id > id)
@ -1480,7 +1474,7 @@ void pevent_filter_clear_trivial(struct event_filter *filter,
{
struct filter_type *filter_type;
int count = 0;
int *ids;
int *ids = NULL;
int i;
if (!filter->filters)
@ -1504,10 +1498,8 @@ void pevent_filter_clear_trivial(struct event_filter *filter,
default:
break;
}
if (count)
ids = realloc(ids, sizeof(*ids) * (count + 1));
else
ids = malloc(sizeof(*ids));
ids = realloc(ids, sizeof(*ids) * (count + 1));
if (!ids)
die("Can't allocate ids");
ids[count++] = filter_type->event_id;