First round of fixes for IIO post 3.8-rc1.

A set of worthy if rather dull little fixes.
 
 * A whole set of incorrect error handling on regulator voltage requests.
 * An error in the probe path for max1363.
 * A couple of Kconfig issues with missing/ignored dependencies.
 * A nasty shift vs compare typo in adf4350
 * Bug fixes for a silly error that prevents at91_adc driver building.
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Merge tag 'iio-fixes-for-3.8a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan says:

	First round of fixes for IIO post 3.8-rc1.

	A set of worthy if rather dull little fixes.

	* A whole set of incorrect error handling on regulator voltage requests.
	* An error in the probe path for max1363.
	* A couple of Kconfig issues with missing/ignored dependencies.
	* A nasty shift vs compare typo in adf4350
	* Bug fixes for a silly error that prevents at91_adc driver building.

drivers/iio/accel/Kconfig

@@ -8,6 +8,7 @@ config HID_SENSOR_ACCEL_3D
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	select HID_SENSOR_IIO_COMMON
+	select HID_SENSOR_IIO_TRIGGER
 	tristate "HID Accelerometers 3D"
 	help
 	  Say yes here to build support for the HID SENSOR

drivers/iio/adc/ad7266.c

@@ -411,7 +411,11 @@ static int __devinit ad7266_probe(struct spi_device *spi)
 		if (ret)
 			goto error_put_reg;
 
-		st->vref_uv = regulator_get_voltage(st->reg);
+		ret = regulator_get_voltage(st->reg);
+		if (ret < 0)
+			goto error_disable_reg;
+
+		st->vref_uv = ret;
 	} else {
 		/* Use internal reference */
 		st->vref_uv = 2500000;

drivers/iio/adc/at91_adc.c

@@ -80,7 +80,7 @@ static irqreturn_t at91_adc_trigger_handler(int irq, void *p)
 		*timestamp = pf->timestamp;
 	}
 
-	iio_push_to_buffers(indio_dev, (u8 *)st->buffer);
+	iio_push_to_buffers(idev, (u8 *)st->buffer);
 
 	iio_trigger_notify_done(idev->trig);
 

drivers/iio/adc/max1363.c

@@ -1605,19 +1605,20 @@ static int __devinit max1363_probe(struct i2c_client *client,
 
 	return 0;
 error_free_irq:
-	free_irq(st->client->irq, indio_dev);
+	if (client->irq)
+		free_irq(st->client->irq, indio_dev);
 error_uninit_buffer:
 	iio_buffer_unregister(indio_dev);
 error_cleanup_buffer:
 	max1363_buffer_cleanup(indio_dev);
 error_free_available_scan_masks:
 	kfree(indio_dev->available_scan_masks);
-error_unregister_map:
-	iio_map_array_unregister(indio_dev, client->dev.platform_data);
 error_disable_reg:
 	regulator_disable(st->reg);
 error_put_reg:
 	regulator_put(st->reg);
+error_unregister_map:
+	iio_map_array_unregister(indio_dev, client->dev.platform_data);
 error_free_device:
 	iio_device_free(indio_dev);
 error_out:
@@ -1635,10 +1636,8 @@ static int __devexit max1363_remove(struct i2c_client *client)
 	iio_buffer_unregister(indio_dev);
 	max1363_buffer_cleanup(indio_dev);
 	kfree(indio_dev->available_scan_masks);
-	if (!IS_ERR(st->reg)) {
-		regulator_disable(st->reg);
-		regulator_put(st->reg);
-	}
+	regulator_disable(st->reg);
+	regulator_put(st->reg);
 	iio_map_array_unregister(indio_dev, client->dev.platform_data);
 	iio_device_free(indio_dev);
 

drivers/iio/common/hid-sensors/Kconfig

@@ -6,7 +6,7 @@ menu "Hid Sensor IIO Common"
 config HID_SENSOR_IIO_COMMON
 	tristate "Common modules for all HID Sensor IIO drivers"
 	depends on HID_SENSOR_HUB
-	select IIO_TRIGGER if IIO_BUFFER
+	select HID_SENSOR_IIO_TRIGGER if IIO_BUFFER
 	help
 	  Say yes here to build support for HID sensor to use
 	  HID sensor common processing for attributes and IIO triggers.
@@ -14,6 +14,17 @@ config HID_SENSOR_IIO_COMMON
 	  HID sensor drivers, this module contains processing for those
 	  attributes.
 
+config HID_SENSOR_IIO_TRIGGER
+	tristate "Common module (trigger) for all HID Sensor IIO drivers"
+	depends on HID_SENSOR_HUB && HID_SENSOR_IIO_COMMON
+	select IIO_TRIGGER
+	help
+	  Say yes here to build trigger support for HID sensors.
+	  Triggers will be send if all requested attributes were read.
+
+	  If this driver is compiled as a module, it will be named
+	  hid-sensor-trigger.
+
 config HID_SENSOR_ENUM_BASE_QUIRKS
 	bool "ENUM base quirks for HID Sensor IIO drivers"
 	depends on HID_SENSOR_IIO_COMMON

drivers/iio/common/hid-sensors/Makefile

@@ -3,4 +3,5 @@
 #
 
 obj-$(CONFIG_HID_SENSOR_IIO_COMMON) += hid-sensor-iio-common.o
-hid-sensor-iio-common-y := hid-sensor-attributes.o hid-sensor-trigger.o
+obj-$(CONFIG_HID_SENSOR_IIO_TRIGGER) += hid-sensor-trigger.o
+hid-sensor-iio-common-y := hid-sensor-attributes.o

drivers/iio/dac/ad5380.c

@@ -406,7 +406,11 @@ static int __devinit ad5380_probe(struct device *dev, struct regmap *regmap,
 			goto error_free_reg;
 		}
 
-		st->vref = regulator_get_voltage(st->vref_reg);
+		ret = regulator_get_voltage(st->vref_reg);
+		if (ret < 0)
+			goto error_disable_reg;
+
+		st->vref = ret;
 	} else {
 		st->vref = st->chip_info->int_vref;
 		ctrl |= AD5380_CTRL_INT_VREF_EN;

drivers/iio/dac/ad5446.c

@@ -226,7 +226,11 @@ static int __devinit ad5446_probe(struct device *dev, const char *name,
 		if (ret)
 			goto error_put_reg;
 
-		voltage_uv = regulator_get_voltage(reg);
+		ret = regulator_get_voltage(reg);
+		if (ret < 0)
+			goto error_disable_reg;
+
+		voltage_uv = ret;
 	}
 
 	indio_dev = iio_device_alloc(sizeof(*st));

drivers/iio/dac/ad5504.c

@@ -296,7 +296,11 @@ static int __devinit ad5504_probe(struct spi_device *spi)
 		if (ret)
 			goto error_put_reg;
 
-		voltage_uv = regulator_get_voltage(reg);
+		ret = regulator_get_voltage(reg);
+		if (ret < 0)
+			goto error_disable_reg;
+
+		voltage_uv = ret;
 	}
 
 	spi_set_drvdata(spi, indio_dev);

drivers/iio/dac/ad5624r_spi.c

@@ -238,7 +238,11 @@ static int __devinit ad5624r_probe(struct spi_device *spi)
 		if (ret)
 			goto error_put_reg;
 
-		voltage_uv = regulator_get_voltage(st->reg);
+		ret = regulator_get_voltage(st->reg);
+		if (ret < 0)
+			goto error_disable_reg;
+
+		voltage_uv = ret;
 	}
 
 	spi_set_drvdata(spi, indio_dev);

drivers/iio/dac/ad5686.c

@@ -332,7 +332,11 @@ static int __devinit ad5686_probe(struct spi_device *spi)
 		if (ret)
 			goto error_put_reg;
 
-		voltage_uv = regulator_get_voltage(st->reg);
+		ret = regulator_get_voltage(st->reg);
+		if (ret < 0)
+			goto error_disable_reg;
+
+		voltage_uv = ret;
 	}
 
 	st->chip_info =

drivers/iio/dac/ad5791.c

@@ -365,7 +365,11 @@ static int __devinit ad5791_probe(struct spi_device *spi)
 		if (ret)
 			goto error_put_reg_pos;
 
-		pos_voltage_uv = regulator_get_voltage(st->reg_vdd);
+		ret = regulator_get_voltage(st->reg_vdd);
+		if (ret < 0)
+			goto error_disable_reg_pos;
+
+		pos_voltage_uv = ret;
 	}
 
 	st->reg_vss = regulator_get(&spi->dev, "vss");
@@ -374,7 +378,11 @@ static int __devinit ad5791_probe(struct spi_device *spi)
 		if (ret)
 			goto error_put_reg_neg;
 
-		neg_voltage_uv = regulator_get_voltage(st->reg_vss);
+		ret = regulator_get_voltage(st->reg_vss);
+		if (ret < 0)
+			goto error_disable_reg_neg;
+
+		neg_voltage_uv = ret;
 	}
 
 	st->pwr_down = true;
@@ -428,6 +436,7 @@ error_put_reg_neg:
 	if (!IS_ERR(st->reg_vss))
 		regulator_put(st->reg_vss);
 
+error_disable_reg_pos:
 	if (!IS_ERR(st->reg_vdd))
 		regulator_disable(st->reg_vdd);
 error_put_reg_pos:

drivers/iio/frequency/adf4350.c

@@ -173,7 +173,7 @@ static int adf4350_set_freq(struct adf4350_state *st, unsigned long long freq)
 			} while ((st->r1_mod > ADF4350_MAX_MODULUS) && r_cnt);
 		} while (r_cnt == 0);
 
-		tmp = freq * (u64)st->r1_mod + (st->fpfd > 1);
+		tmp = freq * (u64)st->r1_mod + (st->fpfd >> 1);
 		do_div(tmp, st->fpfd); /* Div round closest (n + d/2)/d */
 		st->r0_fract = do_div(tmp, st->r1_mod);
 		st->r0_int = tmp;

drivers/iio/gyro/Kconfig

@@ -17,6 +17,7 @@ config HID_SENSOR_GYRO_3D
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	select HID_SENSOR_IIO_COMMON
+	select HID_SENSOR_IIO_TRIGGER
 	tristate "HID Gyroscope 3D"
 	help
 	  Say yes here to build support for the HID SENSOR

drivers/iio/light/Kconfig

@@ -47,6 +47,7 @@ config HID_SENSOR_ALS
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	select HID_SENSOR_IIO_COMMON
+	select HID_SENSOR_IIO_TRIGGER
 	tristate "HID ALS"
 	help
 	  Say yes here to build support for the HID SENSOR

drivers/iio/magnetometer/Kconfig

@@ -8,6 +8,7 @@ config HID_SENSOR_MAGNETOMETER_3D
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	select HID_SENSOR_IIO_COMMON
+	select HID_SENSOR_IIO_TRIGGER
 	tristate "HID Magenetometer 3D"
 	help
 	  Say yes here to build support for the HID SENSOR

drivers/staging/iio/gyro/Kconfig

@@ -27,8 +27,8 @@ config ADIS16130
 config ADIS16260
 	tristate "Analog Devices ADIS16260 Digital Gyroscope Sensor SPI driver"
 	depends on SPI
-	select IIO_TRIGGER if IIO_BUFFER
-	select IIO_SW_RING if IIO_BUFFER
+	select IIO_ADIS_LIB
+	select IIO_ADIS_LIB_BUFFER if IIO_BUFFER
 	help
 	  Say yes here to build support for Analog Devices ADIS16260 ADIS16265
 	  ADIS16250 ADIS16255 and ADIS16251 programmable digital gyroscope sensors.