From a500a185462d08f63ec3c8a0ba3185d1b84cb85d Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Wed, 10 Oct 2012 05:18:51 -0300 Subject: [PATCH] [media] sh_mobile_ceu_camera: use managed memory and resource allocations Use managed allocations to simplify error handling and clean up paths. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- .../platform/soc_camera/sh_mobile_ceu_camera.c | 32 ++++++---------------- 1 file changed, 9 insertions(+), 23 deletions(-) diff --git a/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c b/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c index bf66cb4..27eeca1 100644 --- a/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c +++ b/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c @@ -2088,15 +2088,13 @@ static int __devinit sh_mobile_ceu_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (!res || (int)irq <= 0) { dev_err(&pdev->dev, "Not enough CEU platform resources.\n"); - err = -ENODEV; - goto exit; + return -ENODEV; } - pcdev = kzalloc(sizeof(*pcdev), GFP_KERNEL); + pcdev = devm_kzalloc(&pdev->dev, sizeof(*pcdev), GFP_KERNEL); if (!pcdev) { dev_err(&pdev->dev, "Could not allocate pcdev\n"); - err = -ENOMEM; - goto exit; + return -ENOMEM; } INIT_LIST_HEAD(&pcdev->capture); @@ -2105,19 +2103,17 @@ static int __devinit sh_mobile_ceu_probe(struct platform_device *pdev) pcdev->pdata = pdev->dev.platform_data; if (!pcdev->pdata) { - err = -EINVAL; dev_err(&pdev->dev, "CEU platform data not set.\n"); - goto exit_kfree; + return -EINVAL; } pcdev->max_width = pcdev->pdata->max_width ? : 2560; pcdev->max_height = pcdev->pdata->max_height ? : 1920; - base = ioremap_nocache(res->start, resource_size(res)); + base = devm_request_and_ioremap(&pdev->dev, res); if (!base) { - err = -ENXIO; dev_err(&pdev->dev, "Unable to ioremap CEU registers.\n"); - goto exit_kfree; + return -ENXIO; } pcdev->irq = irq; @@ -2133,16 +2129,15 @@ static int __devinit sh_mobile_ceu_probe(struct platform_device *pdev) DMA_MEMORY_EXCLUSIVE); if (!err) { dev_err(&pdev->dev, "Unable to declare CEU memory.\n"); - err = -ENXIO; - goto exit_iounmap; + return -ENXIO; } pcdev->video_limit = resource_size(res); } /* request irq */ - err = request_irq(pcdev->irq, sh_mobile_ceu_irq, IRQF_DISABLED, - dev_name(&pdev->dev), pcdev); + err = devm_request_irq(&pdev->dev, pcdev->irq, sh_mobile_ceu_irq, + IRQF_DISABLED, dev_name(&pdev->dev), pcdev); if (err) { dev_err(&pdev->dev, "Unable to register CEU interrupt.\n"); goto exit_release_mem; @@ -2246,15 +2241,9 @@ exit_free_ctx: vb2_dma_contig_cleanup_ctx(pcdev->alloc_ctx); exit_free_clk: pm_runtime_disable(&pdev->dev); - free_irq(pcdev->irq, pcdev); exit_release_mem: if (platform_get_resource(pdev, IORESOURCE_MEM, 1)) dma_release_declared_memory(&pdev->dev); -exit_iounmap: - iounmap(base); -exit_kfree: - kfree(pcdev); -exit: return err; } @@ -2267,10 +2256,8 @@ static int __devexit sh_mobile_ceu_remove(struct platform_device *pdev) soc_camera_host_unregister(soc_host); pm_runtime_disable(&pdev->dev); - free_irq(pcdev->irq, pcdev); if (platform_get_resource(pdev, IORESOURCE_MEM, 1)) dma_release_declared_memory(&pdev->dev); - iounmap(pcdev->base); vb2_dma_contig_cleanup_ctx(pcdev->alloc_ctx); if (csi2_pdev && csi2_pdev->dev.driver) { struct module *csi2_drv = csi2_pdev->dev.driver->owner; @@ -2279,7 +2266,6 @@ static int __devexit sh_mobile_ceu_remove(struct platform_device *pdev) platform_device_put(csi2_pdev); module_put(csi2_drv); } - kfree(pcdev); return 0; } -- 2.7.4