From patchwork Tue Dec 14 16:16:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Corentin Labbe X-Patchwork-Id: 523847 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A021C433EF for ; Tue, 14 Dec 2021 16:17:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235664AbhLNQQv (ORCPT ); Tue, 14 Dec 2021 11:16:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57958 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235653AbhLNQQt (ORCPT ); Tue, 14 Dec 2021 11:16:49 -0500 Received: from mail-wm1-x32c.google.com (mail-wm1-x32c.google.com [IPv6:2a00:1450:4864:20::32c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 74620C06173F for ; Tue, 14 Dec 2021 08:16:49 -0800 (PST) Received: by mail-wm1-x32c.google.com with SMTP id o29so14676526wms.2 for ; Tue, 14 Dec 2021 08:16:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=UA8BDGo2OVkSvlZ3tUQzBXeiycsp95ppqXmRxbwChls=; b=lPlyiZsBUx9rsBJDdMTq2wr4L/oSmmbTyLzUFpPfupwVY9F3T1uo5hqgnMIWYXCRbC gJfka644gNTgt4Aec9uON1siGCuw/inSXxBh+t5FEfJHrSW1rrRZMDThjf4z2Fj7/gnK zB+bMMFO8VEW9VQs8pruunCOubn7Fnz0HmNypiNNy6wF6SB8ru92C4UYGpbJ2RjIau1/ Lepd0pPAuKkl9iW4ytoY9OuFju/ztMuXv1EYGzv4qASRye2lV2YA4OpSeNj+8yO2KDvL lvyfMcx5WcdrUyfhaB1qUEozn9+yg5jn+1ZeqqdxGxIpkIhWji+6WVAbkOgbFgEMdoos tYCA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=UA8BDGo2OVkSvlZ3tUQzBXeiycsp95ppqXmRxbwChls=; b=rEtW+y2fWkGblUPz7l+Kd2oUuDRUSge66meFUva3ugaHzfHRImNdoygZSp2oPnBHeK X74LW//5FV5y05TUxiEqGZ93YWdIib+wwzcrvTQNpX9HJV/8zQ6RnsG93Hs48vJvUNUo BLyjfanCZJJ+E1bD1mS8+bhMfCHfhq36Cn2uFoMLP0aVu9PL7rr3GBLqwXmTshlDsHao 0x+08WOL+3Lk3oKP58dgLlXh1PNG0G3NPCnQczm5QoAfrvViXZSQAwev3vW7RA+O109A 8NhTENEwOtDvjEOETVgi2rWrvXiARp7/5wGLVRohXcvZpUu8WINe6xl1Ig7KGcE6nBmg uPFg== X-Gm-Message-State: AOAM532BFwEthjc3pA8vRHZLJ6BNEudAWkAXNda5siW5TTOBzT62FuLp l3QUzEo7CUeDZQdXhHc0xphIHw== X-Google-Smtp-Source: ABdhPJycnYG9Wj1oMJhRrLpX6nANFczZItpIJn4xfa7CiSTzUXXCSyUn1ZNB6Bnzrf6UqRcia4toLQ== X-Received: by 2002:a05:600c:a55:: with SMTP id c21mr47570609wmq.191.1639498608030; Tue, 14 Dec 2021 08:16:48 -0800 (PST) Received: from localhost.localdomain (laubervilliers-658-1-213-31.w90-63.abo.wanadoo.fr. [90.63.244.31]) by smtp.googlemail.com with ESMTPSA id a9sm295116wrt.66.2021.12.14.08.16.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 14 Dec 2021 08:16:47 -0800 (PST) From: Corentin Labbe To: mchehab@kernel.org, hverkuil@xs4all.nl, gregkh@linuxfoundation.org Cc: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-staging@lists.linux.dev, mjpeg-users@lists.sourceforge.net, Corentin Labbe Subject: [PATCH v4 08/18] staging: media: zoran: move videodev alloc Date: Tue, 14 Dec 2021 16:16:26 +0000 Message-Id: <20211214161636.1886900-9-clabbe@baylibre.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211214161636.1886900-1-clabbe@baylibre.com> References: <20211214161636.1886900-1-clabbe@baylibre.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Move some code out of zr36057_init() and create new functions for handling zr->video_dev. This permit to ease code reading and fix a zr->video_dev memory leak. Signed-off-by: Corentin Labbe --- drivers/staging/media/zoran/zoran.h | 2 +- drivers/staging/media/zoran/zoran_card.c | 80 ++++++++++++++-------- drivers/staging/media/zoran/zoran_driver.c | 5 +- 3 files changed, 54 insertions(+), 33 deletions(-) diff --git a/drivers/staging/media/zoran/zoran.h b/drivers/staging/media/zoran/zoran.h index 981cb63ac9af..c36b33f42b16 100644 --- a/drivers/staging/media/zoran/zoran.h +++ b/drivers/staging/media/zoran/zoran.h @@ -315,6 +315,6 @@ static inline struct zoran *to_zoran(struct v4l2_device *v4l2_dev) #endif -int zoran_queue_init(struct zoran *zr, struct vb2_queue *vq); +int zoran_queue_init(struct zoran *zr, struct vb2_queue *vq, int dir); void zoran_queue_exit(struct zoran *zr); int zr_set_buf(struct zoran *zr); diff --git a/drivers/staging/media/zoran/zoran_card.c b/drivers/staging/media/zoran/zoran_card.c index 9cd49f85a56e..19eb3150074a 100644 --- a/drivers/staging/media/zoran/zoran_card.c +++ b/drivers/staging/media/zoran/zoran_card.c @@ -885,6 +885,52 @@ int zoran_check_jpg_settings(struct zoran *zr, return 0; } +static int zoran_init_video_device(struct zoran *zr, struct video_device *video_dev, int dir) +{ + int err; + + /* Now add the template and register the device unit. */ + *video_dev = zoran_template; + video_dev->v4l2_dev = &zr->v4l2_dev; + video_dev->lock = &zr->lock; + video_dev->device_caps = V4L2_CAP_STREAMING | dir; + + strscpy(video_dev->name, ZR_DEVNAME(zr), sizeof(video_dev->name)); + /* + * It's not a mem2mem device, but you can both capture and output from one and the same + * device. This should really be split up into two device nodes, but that's a job for + * another day. + */ + video_dev->vfl_dir = VFL_DIR_M2M; + zoran_queue_init(zr, &zr->vq, V4L2_BUF_TYPE_VIDEO_CAPTURE); + + err = video_register_device(video_dev, VFL_TYPE_VIDEO, video_nr[zr->id]); + if (err < 0) + return err; + video_set_drvdata(video_dev, zr); + return 0; +} + +static void zoran_exit_video_devices(struct zoran *zr) +{ + video_unregister_device(zr->video_dev); + kfree(zr->video_dev); +} + +static int zoran_init_video_devices(struct zoran *zr) +{ + int err; + + zr->video_dev = video_device_alloc(); + if (!zr->video_dev) + return -ENOMEM; + + err = zoran_init_video_device(zr, zr->video_dev, V4L2_CAP_VIDEO_CAPTURE); + if (err) + kfree(zr->video_dev); + return err; +} + void zoran_open_init_params(struct zoran *zr) { int i; @@ -956,17 +1002,11 @@ static int zr36057_init(struct zoran *zr) zoran_open_init_params(zr); /* allocate memory *before* doing anything to the hardware in case allocation fails */ - zr->video_dev = video_device_alloc(); - if (!zr->video_dev) { - err = -ENOMEM; - goto exit; - } zr->stat_com = dma_alloc_coherent(&zr->pci_dev->dev, BUZ_NUM_STAT_COM * sizeof(u32), &zr->p_sc, GFP_KERNEL); if (!zr->stat_com) { - err = -ENOMEM; - goto exit_video; + return -ENOMEM; } for (j = 0; j < BUZ_NUM_STAT_COM; j++) zr->stat_com[j] = cpu_to_le32(1); /* mark as unavailable to zr36057 */ @@ -979,26 +1019,9 @@ static int zr36057_init(struct zoran *zr) goto exit_statcom; } - /* Now add the template and register the device unit. */ - *zr->video_dev = zoran_template; - zr->video_dev->v4l2_dev = &zr->v4l2_dev; - zr->video_dev->lock = &zr->lock; - zr->video_dev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE; - - strscpy(zr->video_dev->name, ZR_DEVNAME(zr), sizeof(zr->video_dev->name)); - /* - * It's not a mem2mem device, but you can both capture and output from one and the same - * device. This should really be split up into two device nodes, but that's a job for - * another day. - */ - zr->video_dev->vfl_dir = VFL_DIR_M2M; - - zoran_queue_init(zr, &zr->vq); - - err = video_register_device(zr->video_dev, VFL_TYPE_VIDEO, video_nr[zr->id]); - if (err < 0) + err = zoran_init_video_devices(zr); + if (err) goto exit_statcomb; - video_set_drvdata(zr->video_dev, zr); zoran_init_hardware(zr); if (!pass_through) { @@ -1013,9 +1036,6 @@ static int zr36057_init(struct zoran *zr) dma_free_coherent(&zr->pci_dev->dev, BUZ_NUM_STAT_COM * sizeof(u32) * 2, zr->stat_comb, zr->p_scb); exit_statcom: dma_free_coherent(&zr->pci_dev->dev, BUZ_NUM_STAT_COM * sizeof(u32), zr->stat_com, zr->p_sc); -exit_video: - kfree(zr->video_dev); -exit: return err; } @@ -1050,7 +1070,7 @@ static void zoran_remove(struct pci_dev *pdev) dma_free_coherent(&zr->pci_dev->dev, BUZ_NUM_STAT_COM * sizeof(u32) * 2, zr->stat_comb, zr->p_scb); pci_release_regions(pdev); pci_disable_device(zr->pci_dev); - video_unregister_device(zr->video_dev); + zoran_exit_video_devices(zr); exit_free: v4l2_ctrl_handler_free(&zr->hdl); v4l2_device_unregister(&zr->v4l2_dev); diff --git a/drivers/staging/media/zoran/zoran_driver.c b/drivers/staging/media/zoran/zoran_driver.c index 46382e43f1bf..551db338c7f7 100644 --- a/drivers/staging/media/zoran/zoran_driver.c +++ b/drivers/staging/media/zoran/zoran_driver.c @@ -1008,7 +1008,7 @@ static const struct vb2_ops zr_video_qops = { .wait_finish = vb2_ops_wait_finish, }; -int zoran_queue_init(struct zoran *zr, struct vb2_queue *vq) +int zoran_queue_init(struct zoran *zr, struct vb2_queue *vq, int dir) { int err; @@ -1016,7 +1016,8 @@ int zoran_queue_init(struct zoran *zr, struct vb2_queue *vq) INIT_LIST_HEAD(&zr->queued_bufs); vq->dev = &zr->pci_dev->dev; - vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + vq->type = dir; + vq->io_modes = VB2_USERPTR | VB2_DMABUF | VB2_MMAP | VB2_READ | VB2_WRITE; vq->drv_priv = zr; vq->buf_struct_size = sizeof(struct zr_buffer);