From nobody Fri Sep 25 04:08:50 2026 Received: from cstnet.cn (smtp25.cstnet.cn [159.226.251.25]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A24DD4D9F6E; Wed, 16 Sep 2026 18:50:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.25 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789584651; cv=none; b=oOLHCVYYLDDGs2mduUUONpuMTg5MA/BsqeaERJkafmPu2gOjXsPbAhwnlqvkZy34rfibX9o0sUNFRdUeLbAG3N+h+1iUfZDdoi1rf/1MzXNxX5LZGhg9iU3YcI+qBGzaX0JNjXCUMvDb3iiPE7W2rtnuZ1VH+XazdNAg2BxtyOY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789584651; c=relaxed/simple; bh=LhTqE8vKZ29JSFqeyd0ItbUv00Wo125vLHNr89gQ5ro=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=cDPUYi5q7PCgr66JGxRd6gHmdzfMwk3o6WCn+5orQnZAhk3M/KPbJKZ0btuUMB14sYh08xPcCgulWDl1HS8zI7ekmyAjFn1jthvNbejUUQlFDFLhk6OZJG/PoGrtIsajNmn6roVAhtWZJ/2Ok66I6xetwEBnJyw02VZlq+eX1mA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn; spf=pass smtp.mailfrom=iscas.ac.cn; arc=none smtp.client-ip=159.226.251.25 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iscas.ac.cn Received: from dfae2b116770.home.arpa (unknown [36.110.52.2]) by APP-05 (Coremail) with SMTP id zQCowABXiEID5apqMt9vCA--.24677S2; Thu, 17 Sep 2026 02:50:43 +0800 (CST) From: Wentao Liang To: dmitry.torokhov@gmail.com Cc: dudl@cypress.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, Wentao Liang , stable@vger.kernel.org Subject: [PATCH] Input: cyapa - fix runtime PM leak in cyapa_update_rt_suspend_scanrate() Date: Wed, 16 Sep 2026 18:50:15 +0000 Message-Id: <20260916185015.2093520-1-vulab@iscas.ac.cn> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: zQCowABXiEID5apqMt9vCA--.24677S2 X-Coremail-Antispam: 1UD129KBjvdXoWrtF1UKrWDtr4xKF4xGF4rKrg_yoWkWFcEgr 1rZw1kXF15Kr1DtwnrJwsxZrWFqa4vgw18Ww4Yyr43tryjvrZ8JryUZFZ3Ar4kX34xGw15 Xws29F9xArZ7ujkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbx8FF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Cr0_ Gr1UM28EF7xvwVC2z280aVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gc CE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E 2Ix0cI8IcVAFwI0_Jw0_WrylYx0Ex4A2jsIE14v26F4j6r4UJwAm72CE4IkC6x0Yz7v_Jr 0_Gr1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7MxkF7I0En4kS14v2 6r126r1DMxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrV AFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUAVWUtwCI c40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1I6r4UMIIF0xvE2Ix0cI8IcVCY1x0267 AKxVW8JVWxJwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Cr0_ Gr1UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Cr1j6rxdYxBIdaVFxhVjvjDU0xZFpf9x0JUBT5 dUUUUU= X-CM-SenderInfo: pyxotu46lvutnvoduhdfq/1tbiCRIMA2qqozWJrgAEsh Content-Type: text/plain; charset="utf-8" pm_runtime_get_sync() unconditionally increments the runtime PM usage counter. If mutex_lock_interruptible() is interrupted, the function returns without dropping that reference. Add the missing pm_runtime_put_sync_autosuspend() call on the error path. Fixes: 672865080a8f ("Input: cyapa - add runtime power management support") Cc: stable@vger.kernel.org Signed-off-by: Wentao Liang --- drivers/input/mouse/cyapa.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c index 6e0d956617a1..5edf4fdbb373 100644 --- a/drivers/input/mouse/cyapa.c +++ b/drivers/input/mouse/cyapa.c @@ -901,8 +901,10 @@ static ssize_t cyapa_update_rt_suspend_scanrate(struct= device *dev, pm_runtime_get_sync(dev); =20 error =3D mutex_lock_interruptible(&cyapa->state_sync_lock); - if (error) + if (error) { + pm_runtime_put_sync_autosuspend(dev); return error; + } =20 cyapa->runtime_suspend_sleep_time =3D min_t(u16, time, 1000); cyapa->runtime_suspend_power_mode =3D --=20 2.34.1