From patchwork Fri Aug 3 15:40:11 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Cassou X-Patchwork-Id: 1271531 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 5896E3FCFC for ; Fri, 3 Aug 2012 15:41:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754052Ab2HCPkj (ORCPT ); Fri, 3 Aug 2012 11:40:39 -0400 Received: from mail1-relais-roc.national.inria.fr ([192.134.164.82]:43437 "EHLO mail1-relais-roc.national.inria.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753525Ab2HCPk2 (ORCPT ); Fri, 3 Aug 2012 11:40:28 -0400 X-IronPort-AV: E=Sophos;i="4.77,706,1336341600"; d="scan'208";a="169023106" Received: from tytso.inria.fr (HELO localhost.localdomain) ([128.93.60.73]) by mail1-relais-roc.national.inria.fr with ESMTP/TLS/DHE-RSA-AES256-SHA; 03 Aug 2012 17:40:24 +0200 From: Damien Cassou To: Florian Tobias Schandinat Cc: kernel-janitors@vger.kernel.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/5] drivers/video/jz4740_fb.c: use devm_ functions Date: Fri, 3 Aug 2012 17:40:11 +0200 Message-Id: <1344008414-2894-3-git-send-email-damien.cassou@lifl.fr> X-Mailer: git-send-email 1.7.2.5 In-Reply-To: <1344008414-2894-1-git-send-email-damien.cassou@lifl.fr> References: <1344008414-2894-1-git-send-email-damien.cassou@lifl.fr> Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org From: Damien Cassou The various devm_ functions allocate memory that is released when a driver detaches. This patch uses these functions for data that is allocated in the probe function of a platform device and is only freed in the remove function. Signed-off-by: Damien Cassou --- drivers/video/jz4740_fb.c | 22 ++++++---------------- 1 file changed, 6 insertions(+), 16 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/video/jz4740_fb.c b/drivers/video/jz4740_fb.c index de36693..7669770 100644 --- a/drivers/video/jz4740_fb.c +++ b/drivers/video/jz4740_fb.c @@ -659,25 +659,25 @@ static int __devinit jzfb_probe(struct platform_device *pdev) jzfb->pdata = pdata; jzfb->mem = mem; - jzfb->ldclk = clk_get(&pdev->dev, "lcd"); + jzfb->ldclk = devm_clk_get(&pdev->dev, "lcd"); if (IS_ERR(jzfb->ldclk)) { ret = PTR_ERR(jzfb->ldclk); dev_err(&pdev->dev, "Failed to get lcd clock: %d\n", ret); goto err_framebuffer_release; } - jzfb->lpclk = clk_get(&pdev->dev, "lcd_pclk"); + jzfb->lpclk = devm_clk_get(&pdev->dev, "lcd_pclk"); if (IS_ERR(jzfb->lpclk)) { ret = PTR_ERR(jzfb->lpclk); dev_err(&pdev->dev, "Failed to get lcd pixel clock: %d\n", ret); - goto err_put_ldclk; + goto err_framebuffer_release; } - jzfb->base = ioremap(mem->start, resource_size(mem)); + jzfb->base = devm_ioremap(&pdev->dev, mem->start, resource_size(mem)); if (!jzfb->base) { dev_err(&pdev->dev, "Failed to ioremap register memory region\n"); ret = -EBUSY; - goto err_put_lpclk; + goto err_framebuffer_release; } platform_set_drvdata(pdev, jzfb); @@ -693,7 +693,7 @@ static int __devinit jzfb_probe(struct platform_device *pdev) ret = jzfb_alloc_devmem(jzfb); if (ret) { dev_err(&pdev->dev, "Failed to allocate video memory\n"); - goto err_iounmap; + goto err_framebuffer_release; } fb->fix = jzfb_fix; @@ -734,12 +734,6 @@ err_free_devmem: fb_dealloc_cmap(&fb->cmap); jzfb_free_devmem(jzfb); -err_iounmap: - iounmap(jzfb->base); -err_put_lpclk: - clk_put(jzfb->lpclk); -err_put_ldclk: - clk_put(jzfb->ldclk); err_framebuffer_release: framebuffer_release(fb); err_release_mem_region: @@ -756,7 +750,6 @@ static int __devexit jzfb_remove(struct platform_device *pdev) jz_gpio_bulk_free(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb)); jz_gpio_bulk_free(jz_lcd_data_pins, jzfb_num_data_pins(jzfb)); - iounmap(jzfb->base); release_mem_region(jzfb->mem->start, resource_size(jzfb->mem)); fb_dealloc_cmap(&jzfb->fb->cmap); @@ -764,9 +757,6 @@ static int __devexit jzfb_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); - clk_put(jzfb->lpclk); - clk_put(jzfb->ldclk); - framebuffer_release(jzfb->fb); return 0;