From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9DDE1D206A7 for ; Wed, 16 Oct 2024 07:23:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3702410E696; Wed, 16 Oct 2024 07:23:13 +0000 (UTC) Received: from rtg-sunil-navi33.amd.com (unknown [165.204.156.251]) by gabe.freedesktop.org (Postfix) with ESMTPS id 266EF10E5F6 for ; Wed, 16 Oct 2024 07:23:10 +0000 (UTC) Received: from rtg-sunil-navi33.amd.com (localhost [127.0.0.1]) by rtg-sunil-navi33.amd.com (8.15.2/8.15.2/Debian-22ubuntu3) with ESMTP id 49G7N0Q61399753; Wed, 16 Oct 2024 12:53:00 +0530 Received: (from sunil@localhost) by rtg-sunil-navi33.amd.com (8.15.2/8.15.2/Submit) id 49G7N0fM1399752; Wed, 16 Oct 2024 12:53:00 +0530 From: Sunil Khatri To: Alex Deucher , =?UTF-8?q?Christian=20K=C3=B6nig?= Cc: amd-gfx@lists.freedesktop.org, Sunil Khatri Subject: [PATCH v3 05/16] drm/amdgpu: validate hw_fini before function call Date: Wed, 16 Oct 2024 12:52:47 +0530 Message-Id: <20241016072258.1399698-6-sunil.khatri@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241016072258.1399698-1-sunil.khatri@amd.com> References: <20241016072258.1399698-1-sunil.khatri@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" Before making a function call to hw_fini, validate the function pointer like we do in sw_init. Signed-off-by: Sunil Khatri --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 26 +++++++++++++--------- 1 file changed, 15 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index cf84b50f2355..340141a74c12 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3287,11 +3287,14 @@ static void amdgpu_device_smu_fini_early(struct amdgpu_device *adev) if (!adev->ip_blocks[i].status.hw) continue; if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) { - r = adev->ip_blocks[i].version->funcs->hw_fini(&adev->ip_blocks[i]); - /* XXX handle errors */ - if (r) { - DRM_DEBUG("hw_fini of IP block <%s> failed %d\n", - adev->ip_blocks[i].version->funcs->name, r); + if (adev->ip_blocks[i].version->funcs->hw_fini) { + r = adev->ip_blocks[i].version->funcs->hw_fini( + &adev->ip_blocks[i]); + /* XXX handle errors */ + if (r) { + DRM_DEBUG("hw_fini of IP block <%s> failed %d\n", + adev->ip_blocks[i].version->funcs->name, r); + } } adev->ip_blocks[i].status.hw = false; break; @@ -3325,12 +3328,13 @@ static int amdgpu_device_ip_fini_early(struct amdgpu_device *adev) for (i = adev->num_ip_blocks - 1; i >= 0; i--) { if (!adev->ip_blocks[i].status.hw) continue; - - r = adev->ip_blocks[i].version->funcs->hw_fini(&adev->ip_blocks[i]); - /* XXX handle errors */ - if (r) { - DRM_DEBUG("hw_fini of IP block <%s> failed %d\n", - adev->ip_blocks[i].version->funcs->name, r); + if (adev->ip_blocks[i].version->funcs->hw_fini) { + r = adev->ip_blocks[i].version->funcs->hw_fini(&adev->ip_blocks[i]); + /* XXX handle errors */ + if (r) { + DRM_DEBUG("hw_fini of IP block <%s> failed %d\n", + adev->ip_blocks[i].version->funcs->name, r); + } } adev->ip_blocks[i].status.hw = false; -- 2.34.1