From nobody Fri Sep 25 02:06:19 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 23DE7497392; Thu, 17 Sep 2026 15:22:42 +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=1789658571; cv=none; b=DFxwmNOX4785/oJ09NDpb99sbyxrbYl/SYInrvSdnFdDHBALzyzGI6KUAcSliMgzZfbiYDI0wDONArydK4hOxl/yePgNlGk/Yy5nSYnvrlCKTs/CuxJxfC5JCPjuIvNC8s17RnAcl0P1uCC9BYl3VVZgOu3ShA4RcMdbnYKteF0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789658571; c=relaxed/simple; bh=EahuWFjx9wFIrRgh4K2BjyJnsqfwU21KdyA8yyyh+4c=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=beedGOGWcHWXU+asFpLiwOwj4bobfXdyNb8VdmGP2BT2z2gHabgdYx1/17OKKYSccppZeV8cN8Uzxz67Ko3zVI+lNjxD2L1/FbuxGrWC+NhyJHu58mXTE3WOUBxoQQIGo8c3loG4I7FcXdNvx5vUddnHAA2SfCWYa95DrhqnIc8= 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 zQCowADnVD+6BaxqjXODCA--.5729S2; Thu, 17 Sep 2026 23:22:34 +0800 (CST) From: Wentao Liang To: gregkh@linuxfoundation.org Cc: linux-kernel@vger.kernel.org, linux-sound@vger.kernel.org, srini@kernel.org, Wentao Liang , stable@vger.kernel.org Subject: [PATCH] slimbus: messaging: Fix runtime PM leak in slim_do_transfer() Date: Thu, 17 Sep 2026 15:22:34 +0000 Message-Id: <20260917152234.2158902-1-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: zQCowADnVD+6BaxqjXODCA--.5729S2 X-Coremail-Antispam: 1UD129KBjvdXoW7Wr4rAr4kJF1xJFyxZrWDArb_yoWDArg_Cr s8JFnrA39xWF17Awn3Jw13ZF9I9a95Xr109FnFvFW3trWUCF45Xr4DXrn8u3srXayUtw13 Gw1qy39rAr1SgjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbS8YjsxI4VWDJwAYFVCjjxCrM7CY07I20VC2zVCF04k26cxKx2IY s7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4 kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_ Gr1j6F4UJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxV W0oVCq3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv 7VC0I7IYx2IY67AKxVWUtVWrXwAv7VC2z280aVAFwI0_Cr1j6rxdMcvjeVCFs4IE7xkEbV WUJVW8JwACjcxG0xvY0x0EwIxGrwACjI8F5VAI37AI020EjII2zVCS5cI20VAGYxC7MxkF 7I0En4kS14v26r126r1DMxAIw28IcxkI7VAKI48JMxAIw28IcVCjz48v1sIEY20_Gr43Wr 1UJr1l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8G jcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r126r1DMIIYrxkI7VAKI48JMIIF0xvE2I x0cI8IcVAFwI0_JFI_Gr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26F4j6r4UJwCI42IY6xAI w20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Gr1j6F4UJwCI42IY6I8E87Iv6x kF7I0E14v26rxl6s0DYxBIdaVFxhVjvjDU0xZFpf9x07UNTmhUUUUU= X-CM-SenderInfo: pyxotu46lvutnvoduhdfq/1tbiCRINA2qr9LYo8QAAsP Content-Type: text/plain; charset="utf-8" slim_do_transfer() takes a runtime PM reference with pm_runtime_get_sync() before allocating a transaction id. The slim_alloc_txn_tid() failure path returns directly, skipping the slim_xfer_err cleanup that drops this reference. Jump to slim_xfer_err so the reference is always released. Fixes: d3062a210930 ("slimbus: messaging: add slim_alloc/free_txn_tid()") Cc: stable@vger.kernel.org Signed-off-by: Wentao Liang --- drivers/slimbus/messaging.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/slimbus/messaging.c b/drivers/slimbus/messaging.c index e2dbe4a66b70..ee127ef42046 100644 --- a/drivers/slimbus/messaging.c +++ b/drivers/slimbus/messaging.c @@ -139,7 +139,7 @@ int slim_do_transfer(struct slim_controller *ctrl, stru= ct slim_msg_txn *txn) if (need_tid) { ret =3D slim_alloc_txn_tid(ctrl, txn); if (ret) - return ret; + goto slim_xfer_err; =20 if (!txn->msg->comp) txn->comp =3D &done; --=20 2.34.1