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GET /api/1.2/patches/2234601/?format=api
{ "id": 2234601, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2234601/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-i2c/patch/20260507221145.62183-2-sauravsc@amazon.com/", "project": { "id": 35, "url": "http://patchwork.ozlabs.org/api/1.2/projects/35/?format=api", "name": "Linux I2C development", "link_name": "linux-i2c", "list_id": "linux-i2c.vger.kernel.org", "list_email": "linux-i2c@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260507221145.62183-2-sauravsc@amazon.com>", "list_archive_url": null, "date": "2026-05-07T22:11:44", "name": "[v2,1/2] i2c: tegra: fix pm_runtime leak on mutex_lock failure", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "a75dab9e94c59c4321b6efa2e85f3e331feba792", "submitter": { "id": 93348, "url": "http://patchwork.ozlabs.org/api/1.2/people/93348/?format=api", "name": "Saurav Sachidanand", "email": "sauravsc@amazon.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-i2c/patch/20260507221145.62183-2-sauravsc@amazon.com/mbox/", "series": [ { "id": 503285, "url": "http://patchwork.ozlabs.org/api/1.2/series/503285/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-i2c/list/?series=503285", "date": "2026-05-07T22:11:43", "name": "i2c: tegra: fix error handling in tegra_i2c_xfer()", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/503285/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2234601/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2234601/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-i2c+bounces-17306-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-i2c@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=amazon.com header.i=@amazon.com header.a=rsa-sha256\n header.s=amazoncorp2 header.b=MbRNjG8K;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; 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smtp.subspace.kernel.org;\n dmarc=pass (p=quarantine dis=none) header.from=amazon.com;\n spf=pass smtp.mailfrom=amazon.de;\n dkim=pass (2048-bit key) header.d=amazon.com header.i=@amazon.com\n header.b=MbRNjG8K; arc=none smtp.client-ip=35.162.73.231", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=amazon.com; i=@amazon.com; q=dns/txt; s=amazoncorp2;\n t=1778191963; x=1809727963;\n h=from:to:cc:subject:date:message-id:in-reply-to:\n references:mime-version:content-transfer-encoding;\n bh=sL1HG7kqsqyCzapHAzWi07Pmq8z6lTjM+WUQjCvQTeU=;\n b=MbRNjG8KKVPn0ut83JzwH1E2geeYIV/VPGFe5/7G/JBf57zPmmdhuNyq\n JV7x3WYMB86jskBoQ/T6dWgbHgaFogzHPeC/baIwihzJREWnc9qgJy6v5\n 2x91u7cIMdF5u0suqcz95Qv7fGn1bf4ucaibuwAeAkFF3Ix2TVwG6NZjM\n J1i2Y1T8o+e146LU+UtirFDDzE5Ascz9l7wzgvVKBmDeVyv+nlT5t5QmM\n V/tFFUZqdpqkw3ZV66hJuHxdV6KMdDWRI66Cdu3GpxJdzDS5srFEihSdO\n l9zJ2xnTwFq9ezE0ZrT32s0FAPQjw66Q5UQoX819OBi8K3kvPO32BvGF2\n g==;", "X-CSE-ConnectionGUID": "GbDAeoq2S/Wnw5xZdYNbNA==", "X-CSE-MsgGUID": "fZuvjD0sSiu+fDE/vtxucg==", "X-IronPort-AV": "E=Sophos;i=\"6.23,222,1770595200\";\n d=\"scan'208\";a=\"18936095\"", "X-Farcaster-Flow-ID": "31b8b753-8200-43de-96b0-455a44c7dcfe", "From": "Saurav Sachidanand <sauravsc@amazon.com>", "To": "Wolfram Sang <wsa+renesas@sang-engineering.com>", "CC": "Akhil R <akhilrajeev@nvidia.com>, Kartik Rajput <kkartik@nvidia.com>,\n\tThierry Reding <treding@nvidia.com>, Jon Hunter <jonathanh@nvidia.com>,\n\t<linux-i2c@vger.kernel.org>, <linux-tegra@vger.kernel.org>,\n\t<linux-kernel@vger.kernel.org>, Saurav Sachidanand <sauravsc@amazon.com>", "Subject": "[PATCH v2 1/2] i2c: tegra: fix pm_runtime leak on mutex_lock failure", "Date": "Thu, 7 May 2026 22:11:44 +0000", "Message-ID": "<20260507221145.62183-2-sauravsc@amazon.com>", "X-Mailer": "git-send-email 2.47.3", "In-Reply-To": "<20260507221145.62183-1-sauravsc@amazon.com>", "References": "<20260506195319.44810-1-sauravsc@amazon.com>\n <20260507221145.62183-1-sauravsc@amazon.com>", "Precedence": "bulk", "X-Mailing-List": "linux-i2c@vger.kernel.org", "List-Id": "<linux-i2c.vger.kernel.org>", "List-Subscribe": "<mailto:linux-i2c+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-i2c+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-ClientProxiedBy": "EX19D044UWA004.ant.amazon.com (10.13.139.7) To\n EX19D001UWA001.ant.amazon.com (10.13.138.214)" }, "content": "If tegra_i2c_mutex_lock() fails, the function returns without calling\npm_runtime_put(), leaking the runtime PM reference acquired by the\npreceding pm_runtime_get_sync(). This prevents the device from ever\nentering runtime suspend.\n\nAdd the missing pm_runtime_put() before returning on lock failure.\n\nFixes: 6077cfd716fb (\"i2c: tegra: Add support for SW mutex register\")\nSigned-off-by: Saurav Sachidanand <sauravsc@amazon.com>\n---\n drivers/i2c/busses/i2c-tegra.c | 4 +++-\n 1 file changed, 3 insertions(+), 1 deletion(-)", "diff": "diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c\nindex 9fd5ade774a0b..c24b8de0a9c7b 100644\n--- a/drivers/i2c/busses/i2c-tegra.c\n+++ b/drivers/i2c/busses/i2c-tegra.c\n@@ -1666,8 +1666,10 @@ static int tegra_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],\n \t}\n \n \tret = tegra_i2c_mutex_lock(i2c_dev);\n-\tif (ret)\n+\tif (ret) {\n+\t\tpm_runtime_put(i2c_dev->dev);\n \t\treturn ret;\n+\t}\n \n \tfor (i = 0; i < num; i++) {\n \t\tenum msg_end_type end_type = MSG_END_STOP;\n", "prefixes": [ "v2", "1/2" ] }