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staging: iio: adc: remove explicit comparison to NULL

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Use !condition instead off condition == NULL when comparing with NULL

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ioana Ciornei 2015-10-14 21:14:14 +03:00 committed by Greg Kroah-Hartman
parent e8ef49f09b
commit 603f102f78
3 changed files with 6 additions and 6 deletions
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2
drivers/staging/iio/adc/ad7192.c
View File

@ -626,7 +626,7 @@ static int ad7192_probe(struct spi_device *spi)
}
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (indio_dev == NULL)
if (!indio_dev)
return -ENOMEM;
st = iio_priv(indio_dev);

8
drivers/staging/iio/adc/ad7280a.c
View File

@ -488,7 +488,7 @@ static int ad7280_channel_init(struct ad7280_state *st)
st->channels = kcalloc((st->slave_num + 1) * 12 + 2,
sizeof(*st->channels), GFP_KERNEL);
if (st->channels == NULL)
if (!st->channels)
return -ENOMEM;
for (dev = 0, cnt = 0; dev <= st->slave_num; dev++)
@ -550,7 +550,7 @@ static int ad7280_attr_init(struct ad7280_state *st)
st->iio_attr = kcalloc(2, sizeof(*st->iio_attr) *
(st->slave_num + 1) * AD7280A_CELLS_PER_DEV,
GFP_KERNEL);
if (st->iio_attr == NULL)
if (!st->iio_attr)
return -ENOMEM;
for (dev = 0, cnt = 0; dev <= st->slave_num; dev++)
@ -687,7 +687,7 @@ static irqreturn_t ad7280_event_handler(int irq, void *private)
int i, ret;
channels = kcalloc(st->scan_cnt, sizeof(*channels), GFP_KERNEL);
if (channels == NULL)
if (!channels)
return IRQ_HANDLED;
ret = ad7280_read_all_channels(st, st->scan_cnt, channels);
@ -842,7 +842,7 @@ static int ad7280_probe(struct spi_device *spi)
struct iio_dev *indio_dev;
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (indio_dev == NULL)
if (!indio_dev)
return -ENOMEM;
st = iio_priv(indio_dev);

2
drivers/staging/iio/adc/mxs-lradc.c
View File

@ -1232,7 +1232,7 @@ static int mxs_lradc_trigger_init(struct iio_dev *iio)
struct mxs_lradc *lradc = iio_priv(iio);
trig = iio_trigger_alloc("%s-dev%i", iio->name, iio->id);
if (trig == NULL)
if (!trig)
return -ENOMEM;
trig->dev.parent = lradc->dev;