{"id":2223941,"url":"http://patchwork.ozlabs.org/api/patches/2223941/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-tegra/patch/20260416-mipi-v1-1-9c027175abdf@gmail.com/","project":{"id":21,"url":"http://patchwork.ozlabs.org/api/projects/21/?format=json","name":"Linux Tegra Development","link_name":"linux-tegra","list_id":"linux-tegra.vger.kernel.org","list_email":"linux-tegra@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260416-mipi-v1-1-9c027175abdf@gmail.com>","list_archive_url":null,"date":"2026-04-16T12:09:29","name":"gpu: host1x: mipi: Fix device_node reference leak in tegra_mipi_request()","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"85cdde19fe89d922b13534c27db9e117eb087abb","submitter":{"id":92491,"url":"http://patchwork.ozlabs.org/api/people/92491/?format=json","name":"Felix Gu","email":"ustc.gu@gmail.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-tegra/patch/20260416-mipi-v1-1-9c027175abdf@gmail.com/mbox/","series":[{"id":500145,"url":"http://patchwork.ozlabs.org/api/series/500145/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-tegra/list/?series=500145","date":"2026-04-16T12:09:29","name":"gpu: host1x: mipi: Fix device_node reference leak in tegra_mipi_request()","version":1,"mbox":"http://patchwork.ozlabs.org/series/500145/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2223941/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2223941/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-tegra@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=cplZMRIY;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c15:e001:75::12fc:5321; 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charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","Message-Id":"<20260416-mipi-v1-1-9c027175abdf@gmail.com>","X-B4-Tracking":"v=1; b=H4sIAHjR4GkC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE\n vPSU3UzU4B8JSMDIzMDE0Mz3dzMgkxdi5S0JOPkZDMT81QTJaDSgqLUtMwKsDHRsbW1ALbbWvN\n WAAAA","X-Change-ID":"20260416-mipi-8dfb3cc647e4","To":"Thierry Reding ,\n Mikko Perttunen , David Airlie ,\n Simona Vetter ,\n Sowjanya Komatineni ","Cc":"Thierry Reding , dri-devel@lists.freedesktop.org,\n linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,\n Felix Gu ","X-Mailer":"b4 0.14.3","X-Developer-Signature":"v=1; a=ed25519-sha256; t=1776341371; l=1103;\n i=ustc.gu@gmail.com; h=from:subject:message-id;\n bh=knUH34kPAdl0Glqyp0IYrLw7Xc3rugSSyGH/rGCenqQ=;\n b=ufNI0wiXlc4OTOmmF0jxOLfRsiv8Bi35YYGkHIae5wkX/CW+StNB3w6KThINmGtHYzUbUOplE\n oltVs94d89BCzlnacTuP+TWPLL1gsEx0ZPZM0QE7qiWj8nQ0EB6728V","X-Developer-Key":"i=ustc.gu@gmail.com; a=ed25519;\n pk=fjUXwmjchVN7Ja6KGP55IXOzFeCl9edaHoQIEUA+/hw="},"content":"In tegra_mipi_request(), when provider.np is not equal with args.np, it\nreturns without calling of_node_put(args.np), causing a reference leak.\n\nConvert to use the existing goto out pattern to ensure proper cleanup.\n\nFixes: 767598d447aa (\"gpu: host1x: mipi: Update tegra_mipi_request() to be node based\")\nSigned-off-by: Felix Gu \n---\n drivers/gpu/host1x/mipi.c | 6 ++++--\n 1 file changed, 4 insertions(+), 2 deletions(-)\n\n\n---\nbase-commit: 936c21068d7ade00325e40d82bfd2f3f29d9f659\nchange-id: 20260416-mipi-8dfb3cc647e4\n\nBest regards,","diff":"diff --git a/drivers/gpu/host1x/mipi.c b/drivers/gpu/host1x/mipi.c\nindex 01513b775d89..988681423981 100644\n--- a/drivers/gpu/host1x/mipi.c\n+++ b/drivers/gpu/host1x/mipi.c\n@@ -114,8 +114,10 @@ struct tegra_mipi_device *tegra_mipi_request(struct device *device,\n \tif (err < 0)\n \t\treturn ERR_PTR(err);\n \n-\tif (provider.np != args.np)\n-\t\treturn ERR_PTR(-ENODEV);\n+\tif (provider.np != args.np) {\n+\t\terr = -ENODEV;\n+\t\tgoto out;\n+\t}\n \n \tmipidev = kzalloc_obj(*mipidev);\n \tif (!mipidev) {\n","prefixes":[]}