Merge tag 'iio-fixes-for-3.11a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

The first round of IIO fixes for the 3.11 cycle.

This set is larger than I would like, partly due to my lack of review
time in the weeks before the merge window and partly because a
couple of large drivers and the subsystem as a whole seem to be
getting a lot more exposure and testing recently.

1) A long term bug in trigger handling gave a double free of the device.

2) Wrong return value handling means offsets are ignored in
   iio_convert_raw_to_processed_unlocked.

3) The iio_channel_has_info utility function was incorrectly updated
   during the recent info_mask split, this is now fixed.

4) mxs-lradc has a couple of little fixes.

5) A couple of missing .driver_module entries meant that drivers
   could be removed from underneath their users.

6) Error path fixes for ad7303 and lis3l02dq.

7) The scale value for presure in the lps331ap driver was out by
   a factor of 100.

5 files changed, 10 insertions, 5 deletions

diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index 4427e8e46a7f..0ad208a69c29 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -183,6 +183,7 @@ static int tiadc_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info tiadc_info = {
 	.read_raw = &tiadc_read_raw,
+	.driver_module = THIS_MODULE,
 };
 
 static int tiadc_probe(struct platform_device *pdev)
diff --git a/drivers/iio/dac/ad7303.c b/drivers/iio/dac/ad7303.c
index 85aeef60dc5f..d546f50f9258 100644
--- a/drivers/iio/dac/ad7303.c
+++ b/drivers/iio/dac/ad7303.c
@@ -235,8 +235,10 @@ static int ad7303_probe(struct spi_device *spi)
 
 	if (ext_ref) {
 		st->vref_reg = regulator_get(&spi->dev, "REF");
-		if (IS_ERR(st->vref_reg))
+		if (IS_ERR(st->vref_reg)) {
+			ret = PTR_ERR(st->vref_reg);
 			goto err_disable_vdd_reg;
+		}
 
 		ret = regulator_enable(st->vref_reg);
 		if (ret)
diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index 4d6c7d84e155..ea8a4146620d 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -104,7 +104,7 @@ void iio_trigger_unregister(struct iio_trigger *trig_info)
 
 	ida_simple_remove(&iio_trigger_ida, trig_info->id);
 	/* Possible issue in here */
-	device_unregister(&trig_info->dev);
+	device_del(&trig_info->dev);
 }
 EXPORT_SYMBOL(iio_trigger_unregister);
 
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index 98ddc323add0..0cf5f8e06cfc 100644
--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -451,7 +451,7 @@ static int iio_convert_raw_to_processed_unlocked(struct iio_channel *chan,
 	int ret;
 
 	ret = iio_channel_read(chan, &offset, NULL, IIO_CHAN_INFO_OFFSET);
-	if (ret == 0)
+	if (ret >= 0)
 		raw64 += offset;
 
 	scale_type = iio_channel_read(chan, &scale_val, &scale_val2,
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 9c343b40665e..3ffbc56917b4 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -28,7 +28,9 @@
 #include <linux/iio/common/st_sensors.h>
 #include "st_pressure.h"
 
-#define ST_PRESS_MBAR_TO_KPASCAL(x)		(x * 10)
+#define ST_PRESS_LSB_PER_MBAR			4096UL
+#define ST_PRESS_KPASCAL_NANO_SCALE		(100000000UL / \
+						 ST_PRESS_LSB_PER_MBAR)
 #define ST_PRESS_NUMBER_DATA_CHANNELS		1
 
 /* DEFAULT VALUE FOR SENSORS */
@@ -51,8 +53,8 @@
 #define ST_PRESS_1_FS_ADDR			0x23
 #define ST_PRESS_1_FS_MASK			0x30
 #define ST_PRESS_1_FS_AVL_1260_VAL		0x00
-#define ST_PRESS_1_FS_AVL_1260_GAIN		ST_PRESS_MBAR_TO_KPASCAL(244141)
 #define ST_PRESS_1_FS_AVL_TEMP_GAIN		2083000
+#define ST_PRESS_1_FS_AVL_1260_GAIN		ST_PRESS_KPASCAL_NANO_SCALE
 #define ST_PRESS_1_BDU_ADDR			0x20
 #define ST_PRESS_1_BDU_MASK			0x04
 #define ST_PRESS_1_DRDY_IRQ_ADDR		0x22