Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 3353D47CC73; Thu, 20 Aug 2026 16:34:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787243677; cv=none; b=ndu/UzkIwlTKtFkTU/624MuQSHh/fFoKFPPr36JQ864mA5D4e07RbAQJkAMSLd0dKzMqnt+ALftUNs6AyY79UdYJTZzv5P0EZUruWZ8ORcEbhjaRAAozbHTzS2dCQP5+v2TO+88iWnRAsF5lDF51kalJVw5Sw4GCtqkKRtFQEx0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787243677; c=relaxed/simple; bh=HSCfTe2Xqqr7VT6xhxICxX0RLF+l04h/llxuKjAC/ts=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NzYXgfk1yA54Xb4vJNPo3fJnV8lwy8x6mbB4kCb1KX8YMp4R6+Rp7lR+JttGUBmhJF0WDvfEakpoAMsGJhe1HMoyjU1td7qSa3FV+oonDNvfgnvrmjVSFF/zNwsQC8wli/bpYOkbj8FA1m16bq3Wr+WJaSRTr50RPKSEDS0/3Fk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ofJiCpDV; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ofJiCpDV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 507381F00ACF; Thu, 20 Aug 2026 16:34:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1787243675; bh=CtWj88JZ4QpqMCWqe/xJhpMSu5iXoPMGBdlBAdXN66g=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=ofJiCpDV8CqW4fkUlEYPOTLK61NYl+nQUFr2ppHDsgnHx/9v81XhhcvEh5Gd2YYVA yfbBICGgWV3jjgV8hMr09Hce8pF027BCrFFXygf7uQlbq1cWf3G+KHFvz/zhXBadmr /VVjWuWVtYvg9Ril8gRX0+3DSlhxu7UVSYZE3V5w= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dmitry Osipenko , Gerd Hoffmann , Sasha Levin Subject: [PATCH 5.15 177/272] drm/virtio: Return proper error codes instead of -1 Date: Thu, 20 Aug 2026 16:56:01 +0200 Message-ID: <20260820145236.770440657@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260820145231.229664293@linuxfoundation.org> References: <20260820145231.229664293@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dmitry Osipenko [ Upstream commit 4c703f5d6f776eaa6a98611c9b5dfe800fbeb0c8 ] Don't return -1 in error cases, return proper error code. The returned error codes propagate to error messages and to userspace and it's always good to have a meaningful error number for debugging purposes. Signed-off-by: Dmitry Osipenko Link: http://patchwork.freedesktop.org/patch/msgid/20220630200726.1884320-10-dmitry.osipenko@collabora.com Signed-off-by: Gerd Hoffmann Stable-dep-of: 4e1a53892ba7 ("drm/virtio: bound EDID block reads to the response buffer") Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/virtio/virtgpu_vq.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -329,7 +329,7 @@ static int virtio_gpu_queue_ctrl_sgs(str if (fence && vbuf->objs) virtio_gpu_array_unlock_resv(vbuf->objs); free_vbuf(vgdev, vbuf); - return -1; + return -ENODEV; } if (vgdev->has_indirect) @@ -393,7 +393,7 @@ static int virtio_gpu_queue_fenced_ctrl_ if (!sgt) { if (fence && vbuf->objs) virtio_gpu_array_unlock_resv(vbuf->objs); - return -1; + return -ENOMEM; } elemcnt += sg_ents; @@ -728,7 +728,7 @@ static int virtio_get_edid_block(void *d size_t start = block * EDID_LENGTH; if (start + len > le32_to_cpu(resp->size)) - return -1; + return -EINVAL; memcpy(buf, resp->edid + start, len); return 0; }