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GET /api/1.1/patches/2225108/?format=api
{ "id": 2225108, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2225108/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260420-pinconf-v1-1-82f8276d8aec@gmail.com/", "project": { "id": 42, "url": "http://patchwork.ozlabs.org/api/1.1/projects/42/?format=api", "name": "Linux GPIO development", "link_name": "linux-gpio", "list_id": "linux-gpio.vger.kernel.org", "list_email": "linux-gpio@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260420-pinconf-v1-1-82f8276d8aec@gmail.com>", "date": "2026-04-20T10:55:55", "name": "pinctrl: pinconf-generic: fix properties bitmap leak in parse_fw_cfg()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "5432eddbf985c6c10dc812dfeb1153d859faf6d4", "submitter": { "id": 92491, "url": "http://patchwork.ozlabs.org/api/1.1/people/92491/?format=api", "name": "Felix Gu", "email": "ustc.gu@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260420-pinconf-v1-1-82f8276d8aec@gmail.com/mbox/", "series": [ { "id": 500596, "url": "http://patchwork.ozlabs.org/api/1.1/series/500596/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/list/?series=500596", "date": "2026-04-20T10:55:55", "name": "pinctrl: pinconf-generic: fix properties bitmap leak in parse_fw_cfg()", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/500596/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2225108/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2225108/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-gpio+bounces-35256-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-gpio@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=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=C2GApaAd;\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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charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260420-pinconf-v1-1-82f8276d8aec@gmail.com>", "X-B4-Tracking": "v=1; b=H4sIADoG5mkC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE\n vPSU3UzU4B8JSMDIzMDEyMD3YLMvOT8vDTdtFRDC0uTxGQDo8RkJaDqgqLUtMwKsEnRsbW1AOW\n jILdZAAAA", "X-Change-ID": "20260420-pinconf-fe1894ac02ac", "To": "Linus Walleij <linusw@kernel.org>,\n Conor Dooley <conor.dooley@microchip.com>", "Cc": "linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,\n Felix Gu <ustc.gu@gmail.com>", "X-Mailer": "b4 0.14.3", "X-Developer-Signature": "v=1; a=ed25519-sha256; t=1776682557; l=1640;\n i=ustc.gu@gmail.com; h=from:subject:message-id;\n bh=A1WSNvZBH7Gl27blE0SBf08sIf2c8iIjtoiwnzlc7uU=;\n b=4KG3p0Phbq/joYNJzNNSAXc7vV/V3sEXN3+vnu2zRTfQmR2eDxVA4yNT4p/ETdVhM12Xwlmww\n PhEA3EdTXZ8AvyBc47tS9XL/nhySJYHqz7zo+yMuXlKamMJK2eGgLgF", "X-Developer-Key": "i=ustc.gu@gmail.com; a=ed25519;\n pk=fjUXwmjchVN7Ja6KGP55IXOzFeCl9edaHoQIEUA+/hw=" }, "content": "In parse_fw_cfg(), if fwnode_property_match_property_string() fails with\n-ENOENT, the code returns directly and leaks the bitmap.\n\nUse __free(bitmap) for automatic cleanup to fix the leak.\n\nFixes: 9c105255108b (\"pinctrl: pinconf-generic: perform basic checks on pincfg properties\")\nSigned-off-by: Felix Gu <ustc.gu@gmail.com>\n---\n drivers/pinctrl/pinconf-generic.c | 5 +----\n 1 file changed, 1 insertion(+), 4 deletions(-)\n\n\n---\nbase-commit: c7275b05bc428c7373d97aa2da02d3a7fa6b9f66\nchange-id: 20260420-pinconf-fe1894ac02ac\n\nBest regards,", "diff": "diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c\nindex 64ed28309788..077149121628 100644\n--- a/drivers/pinctrl/pinconf-generic.c\n+++ b/drivers/pinctrl/pinconf-generic.c\n@@ -225,10 +225,9 @@ static int parse_fw_cfg(struct fwnode_handle *fwnode,\n \t\t\tunsigned int count, unsigned long *cfg,\n \t\t\tunsigned int *ncfg)\n {\n-\tunsigned long *properties;\n \tint i, test;\n \n-\tproperties = bitmap_zalloc(count, GFP_KERNEL);\n+\tunsigned long *properties __free(bitmap) = bitmap_zalloc(count, GFP_KERNEL);\n \n \tfor (i = 0; i < count; i++) {\n \t\tu32 val;\n@@ -263,7 +262,6 @@ static int parse_fw_cfg(struct fwnode_handle *fwnode,\n \t\t\tif (ret) {\n \t\t\t\tpr_err(\"%pfw: conflicting setting detected for %s\\n\",\n \t\t\t\t fwnode, par->property);\n-\t\t\t\tbitmap_free(properties);\n \t\t\t\treturn -EINVAL;\n \t\t\t}\n \t\t}\n@@ -295,7 +293,6 @@ static int parse_fw_cfg(struct fwnode_handle *fwnode,\n \t\tpr_err(\"%pfw: cannot have multiple drive configurations\\n\",\n \t\t fwnode);\n \n-\tbitmap_free(properties);\n \treturn 0;\n }\n \n", "prefixes": [] }