{"id":2233304,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2233304/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-tegra/patch/20260506075745.28574-2-dennylin0707@gmail.com/","project":{"id":21,"url":"http://patchwork.ozlabs.org/api/1.2/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":"<20260506075745.28574-2-dennylin0707@gmail.com>","list_archive_url":null,"date":"2026-05-06T07:57:45","name":"[v2,1/1] media: tegra-video: vi: fix invalid u32 return value in format lookup","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"f165c290f5bd1194538b9687e7380dde12250f96","submitter":{"id":93122,"url":"http://patchwork.ozlabs.org/api/1.2/people/93122/?format=json","name":"Hungyu Lin","email":"dennylin0707@gmail.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-tegra/patch/20260506075745.28574-2-dennylin0707@gmail.com/mbox/","series":[{"id":502930,"url":"http://patchwork.ozlabs.org/api/1.2/series/502930/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-tegra/list/?series=502930","date":"2026-05-06T07:57:44","name":"media: tegra-video: vi: fix invalid u32 return value in format lookup","version":2,"mbox":"http://patchwork.ozlabs.org/series/502930/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2233304/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2233304/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=q9hTC8TI;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; 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This results in a large unsigned\nvalue being returned, which may be interpreted as a valid fourcc.\n\nReturning 0 is not a valid fourcc either. This condition should\nnever happen, so use WARN_ON_ONCE() to catch unexpected out-of-bounds\naccess and return a valid fallback format instead.\n\nSuggested-by: Hans Verkuil \nSigned-off-by: Hungyu Lin \n---\n drivers/staging/media/tegra-video/vi.c | 4 ++--\n 1 file changed, 2 insertions(+), 2 deletions(-)","diff":"diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c\nindex f14cdc7b5211..456134a9e8cf 100644\n--- a/drivers/staging/media/tegra-video/vi.c\n+++ b/drivers/staging/media/tegra-video/vi.c\n@@ -80,8 +80,8 @@ static int tegra_get_format_idx_by_code(struct tegra_vi *vi,\n static u32 tegra_get_format_fourcc_by_idx(struct tegra_vi *vi,\n \t\t\t\t\t unsigned int index)\n {\n-\tif (index >= vi->soc->nformats)\n-\t\treturn -EINVAL;\n+\tif (WARN_ON_ONCE(index >= vi->soc->nformats))\n+\t\treturn vi->soc->video_formats[0].fourcc;\n \n \treturn vi->soc->video_formats[index].fourcc;\n }\n","prefixes":["v2","1/1"]}