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authorSachin Kamat <sachin.kamat@linaro.org>2013-07-22 13:02:00 +0200
committerJonathan Cameron <jic23@kernel.org>2013-08-03 19:40:42 +0200
commitf88375322d46e66a9e0983070b9970853d951fd6 (patch)
tree9c33aa3fc24cb277545a8101be9a4d36e16036fd /drivers/iio/adc/at91_adc.c
parentiio: adc: viperboard_adc: Use devm_iio_device_alloc (diff)
downloadlinux-f88375322d46e66a9e0983070b9970853d951fd6.tar.xz
linux-f88375322d46e66a9e0983070b9970853d951fd6.zip
iio: at91: Use devm_iio_device_alloc
Using devm_iio_device_alloc makes code simpler. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/adc/at91_adc.c')
-rw-r--r--drivers/iio/adc/at91_adc.c23
1 files changed, 7 insertions, 16 deletions
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index b6db6a0e09cd..423e079460d3 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -589,11 +589,9 @@ static int at91_adc_probe(struct platform_device *pdev)
struct resource *res;
u32 reg;
- idev = iio_device_alloc(sizeof(struct at91_adc_state));
- if (idev == NULL) {
- ret = -ENOMEM;
- goto error_ret;
- }
+ idev = devm_iio_device_alloc(&pdev->dev, sizeof(struct at91_adc_state));
+ if (!idev)
+ return -ENOMEM;
st = iio_priv(idev);
@@ -604,8 +602,7 @@ static int at91_adc_probe(struct platform_device *pdev)
if (ret) {
dev_err(&pdev->dev, "No platform data available.\n");
- ret = -EINVAL;
- goto error_free_device;
+ return -EINVAL;
}
platform_set_drvdata(pdev, idev);
@@ -618,16 +615,14 @@ static int at91_adc_probe(struct platform_device *pdev)
st->irq = platform_get_irq(pdev, 0);
if (st->irq < 0) {
dev_err(&pdev->dev, "No IRQ ID is designated\n");
- ret = -ENODEV;
- goto error_free_device;
+ return -ENODEV;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
st->reg_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(st->reg_base)) {
- ret = PTR_ERR(st->reg_base);
- goto error_free_device;
+ return PTR_ERR(st->reg_base);
}
/*
@@ -642,7 +637,7 @@ static int at91_adc_probe(struct platform_device *pdev)
idev);
if (ret) {
dev_err(&pdev->dev, "Failed to allocate IRQ.\n");
- goto error_free_device;
+ return ret;
}
st->clk = devm_clk_get(&pdev->dev, "adc_clk");
@@ -752,9 +747,6 @@ error_disable_clk:
clk_disable_unprepare(st->clk);
error_free_irq:
free_irq(st->irq, idev);
-error_free_device:
- iio_device_free(idev);
-error_ret:
return ret;
}
@@ -769,7 +761,6 @@ static int at91_adc_remove(struct platform_device *pdev)
clk_disable_unprepare(st->adc_clk);
clk_disable_unprepare(st->clk);
free_irq(st->irq, idev);
- iio_device_free(idev);
return 0;
}