From nobody Sun May 24 23:31:10 2026 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (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 3047E304BCB for ; Wed, 20 May 2026 12:05:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779278736; cv=none; b=BFO7tYQAkQS+q+6PYvwvYeeUDMEvoLOA2AHcUIn7XecRKhpjTZwxlcbXEPuE8iCD2Za2MGx/t1lOKW6Ln+6+XzC9udQHRkZBct4aF2MsZbTpFVgYs193q53wc2oAaTwJzHLUE8/3RwboeLuFWJlw3mIr9jysXdA7i72V75MBe84= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779278736; c=relaxed/simple; bh=9gpZXaiRMagtHlDi3XWmjDARAWku0h5Ad9gu81B0A9I=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=BB9OHTcvVaN+ardLbEwqped4UEpCIh5Yxta7O5jxj5ktAGe3peq/m7FdqmIT6tkV0hTqlFd/nuXO/xNuYk+6YUk8gLRNfV+KXbcrxMcKl2DkxYsWKZn+6NZLhvI2aPBVR2XnNEAb7aHjsycE0pmnN1U2nkcCSyFgISeycszy9bc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: 2f298910544411f1aa26b74ffac11d73-20260520 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.12,REQID:9b2a9711-6ccc-4660-8dcb-f774cd3c5ab6,IP:0,U RL:0,TC:0,Content:-25,EDM:25,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTI ON:release,TS:0 X-CID-META: VersionHash:e7bac3a,CLOUDID:86bdcbeb20b570dcd5575306646e0b3a,BulkI D:nil,BulkQuantity:0,Recheck:0,SF:81|82|102|123|850|865|898,TC:nil,Content :0|15|50,EDM:5,IP:nil,URL:99|1,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL :0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_ULS,TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: 2f298910544411f1aa26b74ffac11d73-20260520 X-User: yaolu@kylinos.cn Received: from localhost.localdomain [(10.44.16.150)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_256_GCM_SHA384 256/256) with ESMTP id 1881316677; Wed, 20 May 2026 20:05:25 +0800 From: yaolu@kylinos.cn To: xry111@xry111.site Cc: chenhuacai@kernel.org, dri-devel@lists.freedesktop.org, jeffbai@aosc.io, linux-kernel@vger.kernel.org, lvjianmin@loongson.cn, markus.elfring@web.de, wuqianhai@loongson.cn, yaolu@kylinos.cn, zhengxingda@iscas.ac.cn Subject: [PATCH v3] drm/loongson: rm unused member lsdc_device->gpu Date: Wed, 20 May 2026 20:05:20 +0800 Message-Id: <20260520120520.293729-1-yaolu@kylinos.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <788292607f1d81531f27b6fb616debc2d0ec1da1.camel@xry111.site> References: <788292607f1d81531f27b6fb616debc2d0ec1da1.camel@xry111.site> 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 Content-Type: text/plain; charset="utf-8" From: Lu Yao lsdc_device->gpu never be used. And there has a pci_dev refcount leak in lsdc_get_dedicated_vram() for calling pci_get_domain_bus_and_slot(). Fixes: f39db26c5428 ("drm: Add kms driver for loongson display controller") Signed-off-by: Lu Yao --- v2->v3: rm lsdc_device->gpu for it don't be used suggested by Xi Ruoyao Link: https://lore.kernel.org/all/788292607f1d81531f27b6fb616debc2d0ec1da= 1.camel@xry111.site v1->v2: add fixes tag and parentheses to function names suggested by Markus. Link: https://lore.kernel.org/dri-devel/8ba844ab-9851-4045-a4e8-a96e6d151= 1e2@web.de drivers/gpu/drm/loongson/lsdc_drv.c | 2 +- drivers/gpu/drm/loongson/lsdc_drv.h | 1 - 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/loongson/lsdc_drv.c b/drivers/gpu/drm/loongson= /lsdc_drv.c index 34405073c4d4..99b8f0cda7ad 100644 --- a/drivers/gpu/drm/loongson/lsdc_drv.c +++ b/drivers/gpu/drm/loongson/lsdc_drv.c @@ -181,8 +181,8 @@ static int lsdc_get_dedicated_vram(struct lsdc_device *= ldev, =20 ldev->vram_base =3D base; ldev->vram_size =3D size; - ldev->gpu =3D pdev_gpu; =20 + pci_dev_put(pdev_gpu); drm_info(ddev, "Dedicated vram start: 0x%llx, size: %uMiB\n", (u64)base, (u32)(size >> 20)); =20 diff --git a/drivers/gpu/drm/loongson/lsdc_drv.h b/drivers/gpu/drm/loongson= /lsdc_drv.h index fbf2d760ef27..208bbcf689bf 100644 --- a/drivers/gpu/drm/loongson/lsdc_drv.h +++ b/drivers/gpu/drm/loongson/lsdc_drv.h @@ -269,7 +269,6 @@ struct lsdc_device { /* @descp: features description of the DC variant */ const struct lsdc_desc *descp; struct pci_dev *dc; - struct pci_dev *gpu; =20 struct loongson_gfxpll *gfxpll; =20 --=20 2.25.1