diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2013-12-12 16:36:05 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-12-13 10:30:21 -0300 |
| commit | ef3072cd1d5c2ea229f7abf8d6475e0c200eeb71 (patch) | |
| tree | 1adf00815b64a9f3ef4b3ff2cc8d4f6e2830913e /tools/lib | |
| parent | 9451a2fd78c785445afe0f6966b2043c3ee187ca (diff) | |
tools lib traceevent: Get rid of die in add_filter_type()
The realloc() should check return value and not to overwrite previous
pointer in case of error.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1386833777-3790-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/traceevent/parse-filter.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c index d4b0bac80dc8..767de4f1e8ee 100644 --- a/tools/lib/traceevent/parse-filter.c +++ b/tools/lib/traceevent/parse-filter.c @@ -161,11 +161,13 @@ add_filter_type(struct event_filter *filter, int id) if (filter_type) return filter_type; - filter->event_filters = realloc(filter->event_filters, - sizeof(*filter->event_filters) * - (filter->filters + 1)); - if (!filter->event_filters) - die("Could not allocate filter"); + filter_type = realloc(filter->event_filters, + sizeof(*filter->event_filters) * + (filter->filters + 1)); + if (!filter_type) + return NULL; + + filter->event_filters = filter_type; for (i = 0; i < filter->filters; i++) { if (filter->event_filters[i].event_id > id) @@ -1180,6 +1182,12 @@ static int filter_event(struct event_filter *filter, } filter_type = add_filter_type(filter, event->id); + if (filter_type == NULL) { + show_error(error_str, "failed to add a new filter: %s", + filter_str ? filter_str : "true"); + return -1; + } + if (filter_type->filter) free_arg(filter_type->filter); filter_type->filter = arg; @@ -1417,6 +1425,9 @@ static int copy_filter_type(struct event_filter *filter, arg->boolean.value = 0; filter_type = add_filter_type(filter, event->id); + if (filter_type == NULL) + return -1; + filter_type->filter = arg; free(str); |