From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F65E1F955 for ; Tue, 1 Aug 2023 09:25:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F3B81C433C7; Tue, 1 Aug 2023 09:25:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1690881956; bh=sZpLXBOSZs+p35NUojSHl725Dy4CJ+EYfkebGlWbPRU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1uuMjirX2xY6zruz+QRd1ZjnD5ohyEw4umXqk/CAL199iCIbFGwCY4WF8py0m9Tc/ KRqUE5wzp+1dpjDZRXk1G0d43hlFzkfJuDkAvL+a6QWmRECJPwTEcBK9pe2wHaEaTp V8n2i2MzGPtNOt70q5Gm1gpFMnysZ+w+6HRhOPOI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Gaosheng Cui , Dmitry Baryshkov , Abhinav Kumar , Akhil P Oommen , Rob Clark , Sasha Levin Subject: [PATCH 5.15 090/155] drm/msm: Fix IS_ERR_OR_NULL() vs NULL check in a5xx_submit_in_rb() Date: Tue, 1 Aug 2023 11:20:02 +0200 Message-ID: <20230801091913.394321054@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230801091910.165050260@linuxfoundation.org> References: <20230801091910.165050260@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Gaosheng Cui [ Upstream commit 6e8a996563ecbe68e49c49abd4aaeef69f11f2dc ] The msm_gem_get_vaddr() returns an ERR_PTR() on failure, and a null is catastrophic here, so we should use IS_ERR_OR_NULL() to check the return value. Fixes: 6a8bd08d0465 ("drm/msm: add sudo flag to submit ioctl") Signed-off-by: Gaosheng Cui Reviewed-by: Dmitry Baryshkov Reviewed-by: Abhinav Kumar Reviewed-by: Akhil P Oommen Patchwork: https://patchwork.freedesktop.org/patch/547712/ Signed-off-by: Rob Clark Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index ef62900b06128..e9c8111122bd6 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -90,7 +90,7 @@ static void a5xx_submit_in_rb(struct msm_gpu *gpu, struct msm_gem_submit *submit * since we've already mapped it once in * submit_reloc() */ - if (WARN_ON(!ptr)) + if (WARN_ON(IS_ERR_OR_NULL(ptr))) return; for (i = 0; i < dwords; i++) { -- 2.40.1