From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dl1-f74.google.com (mail-dl1-f74.google.com [74.125.82.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 62F10188596 for ; Wed, 24 Jun 2026 05:15:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.74 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782278156; cv=none; b=CmHLK49QygHVS3lGYy0263hIZn8MEiDEEXIBHOUZvMpDPK9d1JEgG0nPX+VJ0PDSttORK91zRhUaVNNl2e/yDUt+QlMEnUMC9oqHp31kwi7406OJmkqO3Tf9PNrbiYON9JjYfNjMQiYkgy/hRGF3JNLW9Z9/awgSOYTqwRkoFG0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782278156; c=relaxed/simple; bh=PwoPa2Vs6Ae5eSUNGE0hqb+pLO/bfr5LvoIZnko5zj8=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=UrnC4UEn4fZulisKmEnKQ9d6CM7v8ttSLpziv53qyXssrvoCqk2dKwzxDKuyc4Jyx8k9ulD6uLvPX4aXnS/iSguwx4JJ3hM7Qic3rc1Q3E5Gzp3Pyv9zeWwWMeLF+outHFJ9vPOruAPgmA3uvjS4ojgNe85jcOXpurF15y2D7ko= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=TJuWBB1u; arc=none smtp.client-ip=74.125.82.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="TJuWBB1u" Received: by mail-dl1-f74.google.com with SMTP id a92af1059eb24-1384427c3efso3201336c88.0 for ; Tue, 23 Jun 2026 22:15:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1782278154; x=1782882954; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=SyiSZLY2RbswX9wp0q1UQkIHmRPJNqL0WhxzFKpROtU=; b=TJuWBB1uC0viuoVB78uatc2CxzOaRUxM8dz8rty27SVrZqWCNnDWa5gyWf3DeCkBh/ qq9gEKiMnscQcg9v11pjVjs7pRK9f3a1mSbRl/cJ7xtKWnO10Ug08GYkQfrsm+jSBmEI mLWeyf3QTsFaPQ9mudzs67AocSzkeDcK9gKvCk07PM09XVh5ESzfXts1xxY6H0hI0MOf F8nMZeitQmW+AxkA5keDT9TF9JDgevkIcUdaWwpw7/gYkTn7lpI4jwVojrvvZrvh+O4k /rwiTmsjY84BMF/Fc/694vAce8+LQHA34E8I8vs0CN++2GHpHccxuJWrfjFuTltbQtEO XI8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782278154; x=1782882954; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=SyiSZLY2RbswX9wp0q1UQkIHmRPJNqL0WhxzFKpROtU=; b=O6m3+0wqolmbyDk3Yc/ZVmoEBXP6mzb3ajcwd7WFsuhRXXLyYngUlcRdNfb77WWtx5 uS4nz09nNsCtLvZxI2V0nMv2ItsgtFq+bpYdhxGbkvOLiiIIKzBJOXnXtU07dZWOZofE 4bU3OLamPnI+zLzqZ5KyPcr8915QTsYvHWc80battjj1iA7cMwjmUNs2qne22wqv57VL i+niXPwdUkODoMq9oeI6qN2TW1EAwAQGEDUrM479FP3X+vI7d79iOtI6sl0taWsJyI6e w7h6wmDsuoX0G66X3G7CHtTsyIomuePwkhvJrSD5ySlj5RknMz9hAxfGlqru2hTvTu7e bIFg== X-Forwarded-Encrypted: i=1; AFNElJ9EIROgD6s4jHLgsVyZQ1GEMRXeFjL79y3j6ux64MoJB7qXZdwLc/GJcQOAMEtVZ4PJWNvZP9hccnjYEms=@vger.kernel.org X-Gm-Message-State: AOJu0YygApGakVCA7PRKLmdRcUC9CLMxaBhwl8xXmexCWPQmnnlVSHXN knZ43y2NGJBX3/6Ne4oz+wcrDNTbjhmToVRiiNQza6kTXxgzQ+aLcIs/k6IYdjE3zOuKC8daFkE FyuSzXgIk1A== X-Received: from dldyq5-n1.prod.google.com ([2002:a05:701b:4545:10b0:138:106:9053]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7022:fe0b:b0:138:576:fd with SMTP id a92af1059eb24-139c5ce0893mr5196881c88.2.1782278153359; Tue, 23 Jun 2026 22:15:53 -0700 (PDT) Date: Tue, 23 Jun 2026 22:15:23 -0700 In-Reply-To: <20260624051535.3584977-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260623053515.2677888-1-irogers@google.com> <20260624051535.3584977-1-irogers@google.com> X-Mailer: git-send-email 2.55.0.rc0.799.gd6f94ed593-goog Message-ID: <20260624051535.3584977-7-irogers@google.com> Subject: [PATCH v2 05/16] perf synthetic-events: Fix uninitialized pthread_join From: Ian Rogers To: irogers@google.com, acme@kernel.org, namhyung@kernel.org Cc: adrian.hunter@intel.com, alice.mei.rogers@gmail.com, dapeng1.mi@linux.intel.com, james.clark@linaro.org, leo.yan@linux.dev, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, tmricht@linux.ibm.com Content-Type: text/plain; charset="UTF-8" In perf_event__synthesize_threads(), fix an uninitialized pthread_join() call when thread creation fails by only joining the successfully created threads. Assisted-by: Antigravity:gemini-3.1-pro Fixes: 340b47f510bb ("perf top: Implement multithreading for perf_event__synthesize_threads") Signed-off-by: Ian Rogers --- tools/perf/util/synthetic-events.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/synthetic-events.c b/tools/perf/util/synthetic-events.c index b75f9dcf4dbf..35de41ad14d3 100644 --- a/tools/perf/util/synthetic-events.c +++ b/tools/perf/util/synthetic-events.c @@ -1104,8 +1104,8 @@ int perf_event__synthesize_threads(const struct perf_tool *tool, } err = 0; out_join: - for (i = 0; i < thread_nr; i++) - pthread_join(synthesize_threads[i], NULL); + for (j = 0; j < i; j++) + pthread_join(synthesize_threads[j], NULL); free(args); free_threads: free(synthesize_threads); -- 2.55.0.rc0.799.gd6f94ed593-goog