From 931cbaf352e06b649a5033af8dd17eed53efc2c7 Mon Sep 17 00:00:00 2001 From: Devendra Naga Date: Sat, 24 Nov 2012 06:14:38 -0500 Subject: mfd: jz4740-adc: Use devm_kzalloc Use devm_kzalloc and remove the error path free'ing and unload free'ing as the devm resource functions free them. Signed-off-by: Devendra Naga Signed-off-by: Samuel Ortiz --- drivers/mfd/jz4740-adc.c | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) (limited to 'drivers/mfd/jz4740-adc.c') diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c index c6b6d7d..8619508 100644 --- a/drivers/mfd/jz4740-adc.c +++ b/drivers/mfd/jz4740-adc.c @@ -211,7 +211,7 @@ static int __devinit jz4740_adc_probe(struct platform_device *pdev) int ret; int irq_base; - adc = kmalloc(sizeof(*adc), GFP_KERNEL); + adc = devm_kzalloc(&pdev->dev, sizeof(*adc), GFP_KERNEL); if (!adc) { dev_err(&pdev->dev, "Failed to allocate driver structure\n"); return -ENOMEM; @@ -221,30 +221,27 @@ static int __devinit jz4740_adc_probe(struct platform_device *pdev) if (adc->irq < 0) { ret = adc->irq; dev_err(&pdev->dev, "Failed to get platform irq: %d\n", ret); - goto err_free; + return ret; } irq_base = platform_get_irq(pdev, 1); if (irq_base < 0) { - ret = irq_base; - dev_err(&pdev->dev, "Failed to get irq base: %d\n", ret); - goto err_free; + dev_err(&pdev->dev, "Failed to get irq base: %d\n", irq_base); + return irq_base; } mem_base = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!mem_base) { - ret = -ENOENT; dev_err(&pdev->dev, "Failed to get platform mmio resource\n"); - goto err_free; + return -ENOENT; } /* Only request the shared registers for the MFD driver */ adc->mem = request_mem_region(mem_base->start, JZ_REG_ADC_STATUS, pdev->name); if (!adc->mem) { - ret = -EBUSY; dev_err(&pdev->dev, "Failed to request mmio memory region\n"); - goto err_free; + return -EBUSY; } adc->base = ioremap_nocache(adc->mem->start, resource_size(adc->mem)); @@ -301,9 +298,6 @@ err_iounmap: iounmap(adc->base); err_release_mem_region: release_mem_region(adc->mem->start, resource_size(adc->mem)); -err_free: - kfree(adc); - return ret; } @@ -325,8 +319,6 @@ static int __devexit jz4740_adc_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); - kfree(adc); - return 0; } -- cgit v1.1