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Merge tag 'iio-fixes-for-3.15b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

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Jonathan writes:

Second set of fixes for IIO in the 3.15 cycle.

* ad2s1200 - Fix some missing parenthesis in a for statement that could have
  led to an error being missed when getting gpios.
* Fix a null derefference issue in the mpu6050 when platform data is not
  provided (or is provided via the device tree for example).
* exynos_adc bug on remove due to child devices having been added to the
  parent of the IIO device rather than the IIO device itself.  This caused an
  issue with the IIO device removing itself in it's remove function.
* Make all ADC drivers buildable as modules to avoid dependency issues if
  the IIO core is itself built as a module.  The exynos adc bug became
  apparently whilst this fix was being tested.
This commit is contained in:
Greg Kroah-Hartman
2014-04-30 14:19:23 -07:00
parent d1db0eea85 bbc28134e9
commit 86281966c7
4 changed files with 12 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/iio/adc/Kconfig
+2 -2
View File
@@ -106,7 +106,7 @@ config AT91_ADC
Say yes here to build support for Atmel AT91 ADC.
config EXYNOS_ADC
bool "Exynos ADC driver support"
tristate "Exynos ADC driver support"
depends on OF
help
Core support for the ADC block found in the Samsung EXYNOS series
@@ -114,7 +114,7 @@ config EXYNOS_ADC
this resource.
config LP8788_ADC
bool "LP8788 ADC driver"
tristate "LP8788 ADC driver"
depends on MFD_LP8788
help
Say yes here to build support for TI LP8788 ADC.
drivers/iio/adc/exynos_adc.c
+3 -3
View File
@@ -344,7 +344,7 @@ static int exynos_adc_probe(struct platform_device *pdev)
exynos_adc_hw_init(info);
ret = of_platform_populate(np, exynos_adc_match, NULL, &pdev->dev);
ret = of_platform_populate(np, exynos_adc_match, NULL, &indio_dev->dev);
if (ret < 0) {
dev_err(&pdev->dev, "failed adding child nodes\n");
goto err_of_populate;
@@ -353,7 +353,7 @@ static int exynos_adc_probe(struct platform_device *pdev)
return 0;
err_of_populate:
device_for_each_child(&pdev->dev, NULL,
device_for_each_child(&indio_dev->dev, NULL,
exynos_adc_remove_devices);
regulator_disable(info->vdd);
clk_disable_unprepare(info->clk);
@@ -369,7 +369,7 @@ static int exynos_adc_remove(struct platform_device *pdev)
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
struct exynos_adc *info = iio_priv(indio_dev);
device_for_each_child(&pdev->dev, NULL,
device_for_each_child(&indio_dev->dev, NULL,
exynos_adc_remove_devices);
regulator_disable(info->vdd);
clk_disable_unprepare(info->clk);
drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+5 -2
View File
@@ -660,6 +660,7 @@ static int inv_mpu_probe(struct i2c_client *client,
{
struct inv_mpu6050_state *st;
struct iio_dev *indio_dev;
struct inv_mpu6050_platform_data *pdata;
int result;
if (!i2c_check_functionality(client->adapter,
@@ -672,8 +673,10 @@ static int inv_mpu_probe(struct i2c_client *client,
st = iio_priv(indio_dev);
st->client = client;
st->plat_data = *(struct inv_mpu6050_platform_data
*)dev_get_platdata(&client->dev);
pdata = (struct inv_mpu6050_platform_data
*)dev_get_platdata(&client->dev);
if (pdata)
st->plat_data = *pdata;
/* power is turned on inside check chip type*/
result = inv_check_and_setup_chip(st, id);
if (result)
drivers/staging/iio/resolver/ad2s1200.c
+2 -1
View File
@@ -107,7 +107,7 @@ static int ad2s1200_probe(struct spi_device *spi)
int pn, ret = 0;
unsigned short *pins = spi->dev.platform_data;
for (pn = 0; pn < AD2S1200_PN; pn++)
for (pn = 0; pn < AD2S1200_PN; pn++) {
ret = devm_gpio_request_one(&spi->dev, pins[pn], GPIOF_DIR_OUT,
DRV_NAME);
if (ret) {
@@ -115,6 +115,7 @@ static int ad2s1200_probe(struct spi_device *spi)
pins[pn]);
return ret;
}
}
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (!indio_dev)
return -ENOMEM;