| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.8 107/186] perf bench: The do_run_multi_threaded() function must use IS_ERR(perf_session__new()) | Date | Tue, 8 Sep 2020 17:24:09 +0200 |
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From: YueHaibing <yuehaibing@huawei.com>
[ Upstream commit e4d71f79cf5c10fa8bc6f5d3bebea570c9c438f1 ]
In case of error, the function perf_session__new() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR()
Committer notes:
This wasn't compiling due to an extraneous '{' not matched by a '}', fix it.
Fixes: 13edc237200c ("perf bench: Add a multi-threaded synthesize benchmark") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20200902140526.26916-1-yuehaibing@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- tools/perf/bench/synthesize.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/perf/bench/synthesize.c b/tools/perf/bench/synthesize.c index 8d624aea1c5e5..b2924e3181dc3 100644 --- a/tools/perf/bench/synthesize.c +++ b/tools/perf/bench/synthesize.c @@ -162,8 +162,8 @@ static int do_run_multi_threaded(struct target *target, init_stats(&event_stats); for (i = 0; i < multi_iterations; i++) { session = perf_session__new(NULL, false, NULL); - if (!session) - return -ENOMEM; + if (IS_ERR(session)) + return PTR_ERR(session); atomic_set(&event_count, 0); gettimeofday(&start, NULL); -- 2.25.1
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