From nobody Fri Oct 2 10:08:32 2026 Received: from wxsgout04.xfusion.com (wxsgout04.xfusion.com [36.139.87.180]) (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 6A30621A459 for ; Sun, 2 Aug 2026 10:31:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=36.139.87.180 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785666694; cv=none; b=BcELfP9Y2WoyE968nUmQPKQsU09IgRWgEUQ/SeetkVZ9NfqnDxhUsQzuBSk/38wEZDnUO8cY6fNANHxHJvF7xV1k7INzFDV6l8Wp4z2KQhA+N2FlDgo7H2wNyRctYgvLhH+6SvBjSUIEdzsnZ4JYhIGYbFbsOcIDD/ce9eVt1bs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785666694; c=relaxed/simple; bh=JP53AKVYfy8w6mDHpYc1QU9BEOub73QF6+gV2TWJQzY=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=CtRfVa3Ynq7oMF1rVmdvJWwT9TJGvMfvwzQZTm3itKn8QbMBFeBsEqHow69W8dadgxd6KbD+UWNFKgSRz/BBNcZ6PeKwe3ZOdaFE1ER5201xvrjmMtN+t1COXgZXOXTYQON81aE2CEcUnIG1nTgsF9N0opq3cPdMwSO+A9u8ndI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=xfusion.com; spf=pass smtp.mailfrom=xfusion.com; arc=none smtp.client-ip=36.139.87.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=xfusion.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=xfusion.com Received: from wuxpheds03048.xfusion.com (unknown [10.32.143.30]) by wxsgout04.xfusion.com (SkyGuard) with ESMTPS id 4hCb9v0y2wzBR4J5; Sun, 2 Aug 2026 18:08:51 +0800 (CST) Received: from DESKTOP-Q8I2N5U.xfusion.com (10.82.130.100) by wuxpheds03048.xfusion.com (10.32.143.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_RSA_WITH_AES_128_CBC_SHA256) id 15.2.2562.20; Sun, 2 Aug 2026 18:11:19 +0800 From: shechenglong To: , , CC: , , , , , , , , , , , shechenglong Subject: [PATCH] drm/virtio: check return value of vgdev_output_init() Date: Sun, 2 Aug 2026 18:11:08 +0800 Message-ID: <20260802101108.1595-1-shechenglong@xfusion.com> X-Mailer: git-send-email 2.37.1.windows.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: wuxpheds03048.xfusion.com (10.32.143.30) To wuxpheds03048.xfusion.com (10.32.143.30) Content-Type: text/plain; charset="utf-8" The return value of vgdev_output_init(), called by virtio_gpu_modeset_init(), is not checked. As a result, modeset initialization continues even if an output fails to initialize. check the return value and return the error to the caller. Signed-off-by: shechenglong --- drivers/gpu/drm/virtio/virtgpu_display.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c b/drivers/gpu/drm/vir= tio/virtgpu_display.c index 44ffffec550f..f2b98d018c1e 100644 --- a/drivers/gpu/drm/virtio/virtgpu_display.c +++ b/drivers/gpu/drm/virtio/virtgpu_display.c @@ -378,8 +378,11 @@ int virtio_gpu_modeset_init(struct virtio_gpu_device *= vgdev) vgdev->ddev->mode_config.fb_modifiers_not_supported =3D true; - for (i =3D 0 ; i < vgdev->num_scanouts; ++i) - vgdev_output_init(vgdev, i); + for (i =3D 0; i < vgdev->num_scanouts; ++i) { + ret =3D vgdev_output_init(vgdev, i); + if (ret) + return ret; + } ret =3D drm_vblank_init(vgdev->ddev, vgdev->num_scanouts); if (ret) -- 2.33.0