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perf trace: Use zalloc() to save initialization of syscall_stats

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As most members of syscall_stats is set to 0 in thread__update_stats,
using zalloc() directly.

Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220908021141.27134-2-shangxiaojing@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Shang XiaoJing 2022-09-08 10:11:38 +08:00 committed by Arnaldo Carvalho de Melo
parent c581e46ba2
commit e3e7572fa8
1 changed files with 1 additions and 4 deletions
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5
tools/perf/builtin-trace.c
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@ -2173,13 +2173,10 @@ static void thread__update_stats(struct thread *thread, struct thread_trace *ttr
stats = inode->priv;
if (stats == NULL) {
stats = malloc(sizeof(*stats));
stats = zalloc(sizeof(*stats));
if (stats == NULL)
return;
stats->nr_failures = 0;
stats->max_errno = 0;
stats->errnos = NULL;
init_stats(&stats->stats);
inode->priv = stats;
}