From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932382Ab3GMIv1 (ORCPT ); Sat, 13 Jul 2013 04:51:27 -0400 Received: from mail-pb0-f47.google.com ([209.85.160.47]:42177 "EHLO mail-pb0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758139Ab3GMIvZ (ORCPT ); Sat, 13 Jul 2013 04:51:25 -0400 From: Prabhakar Lad To: LMML Cc: DLOS , LKML , "Lad, Prabhakar" Subject: [PATCH 2/5] media: davinci: vpbe_osd: convert to devm_* api Date: Sat, 13 Jul 2013 14:20:28 +0530 Message-Id: <1373705431-11500-3-git-send-email-prabhakar.csengg@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1373705431-11500-1-git-send-email-prabhakar.csengg@gmail.com> References: <1373705431-11500-1-git-send-email-prabhakar.csengg@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Lad, Prabhakar" Replace existing resource handling in the driver with managed device resource, this ensures more consistent error values and simplifies error paths. Signed-off-by: Lad, Prabhakar --- drivers/media/platform/davinci/vpbe_osd.c | 45 +++++++---------------------- 1 file changed, 10 insertions(+), 35 deletions(-) diff --git a/drivers/media/platform/davinci/vpbe_osd.c b/drivers/media/platform/davinci/vpbe_osd.c index 6ed82e8..d053c26 100644 --- a/drivers/media/platform/davinci/vpbe_osd.c +++ b/drivers/media/platform/davinci/vpbe_osd.c @@ -1547,61 +1547,36 @@ static int osd_probe(struct platform_device *pdev) const struct platform_device_id *pdev_id; struct osd_state *osd; struct resource *res; - int ret = 0; - osd = kzalloc(sizeof(struct osd_state), GFP_KERNEL); + pdev_id = platform_get_device_id(pdev); + if (!pdev_id) + return -EINVAL; + + osd = devm_kzalloc(&pdev->dev, sizeof(struct osd_state), GFP_KERNEL); if (osd == NULL) return -ENOMEM; - pdev_id = platform_get_device_id(pdev); - if (!pdev_id) { - ret = -EINVAL; - goto free_mem; - } osd->dev = &pdev->dev; osd->vpbe_type = pdev_id->driver_data; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(osd->dev, "Unable to get OSD register address map\n"); - ret = -ENODEV; - goto free_mem; - } + osd->osd_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(osd->osd_base)) + return PTR_ERR(osd->osd_base); + osd->osd_base_phys = res->start; osd->osd_size = resource_size(res); - if (!request_mem_region(osd->osd_base_phys, osd->osd_size, - MODULE_NAME)) { - dev_err(osd->dev, "Unable to reserve OSD MMIO region\n"); - ret = -ENODEV; - goto free_mem; - } - osd->osd_base = ioremap_nocache(res->start, osd->osd_size); - if (!osd->osd_base) { - dev_err(osd->dev, "Unable to map the OSD region\n"); - ret = -ENODEV; - goto release_mem_region; - } spin_lock_init(&osd->lock); osd->ops = osd_ops; platform_set_drvdata(pdev, osd); dev_notice(osd->dev, "OSD sub device probe success\n"); - return ret; -release_mem_region: - release_mem_region(osd->osd_base_phys, osd->osd_size); -free_mem: - kfree(osd); - return ret; + return 0; } static int osd_remove(struct platform_device *pdev) { - struct osd_state *osd = platform_get_drvdata(pdev); - - iounmap((void *)osd->osd_base); - release_mem_region(osd->osd_base_phys, osd->osd_size); - kfree(osd); return 0; } -- 1.7.9.5