Follow checkpatch.pl's main advices before hacking into the driver, mainly: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' WARNING: Prefer 'unsigned int *' to bare use of 'unsigned *' CHECK: Comparison to NULL could be written "!foo" CHECK: Alignment should match open parenthesis Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx> --- drivers/iio/adc/max1027.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c index b753658bb41e..5c4633a54b30 100644 --- a/drivers/iio/adc/max1027.c +++ b/drivers/iio/adc/max1027.c @@ -327,8 +327,8 @@ static int max1027_read_raw(struct iio_dev *indio_dev, } static int max1027_debugfs_reg_access(struct iio_dev *indio_dev, - unsigned reg, unsigned writeval, - unsigned *readval) + unsigned int reg, unsigned int writeval, + unsigned int *readval) { struct max1027_state *st = iio_priv(indio_dev); u8 *val = (u8 *)st->buffer; @@ -424,7 +424,7 @@ static int max1027_probe(struct spi_device *spi) pr_debug("%s: probe(spi = 0x%p)\n", __func__, spi); indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); - if (indio_dev == NULL) { + if (!indio_dev) { pr_err("Can't allocate iio device\n"); return -ENOMEM; } @@ -443,9 +443,9 @@ static int max1027_probe(struct spi_device *spi) indio_dev->available_scan_masks = st->info->available_scan_masks; st->buffer = devm_kmalloc_array(&indio_dev->dev, - indio_dev->num_channels, 2, - GFP_KERNEL); - if (st->buffer == NULL) { + indio_dev->num_channels, 2, + GFP_KERNEL); + if (!st->buffer) { dev_err(&indio_dev->dev, "Can't allocate buffer\n"); return -ENOMEM; } @@ -462,7 +462,7 @@ static int max1027_probe(struct spi_device *spi) st->trig = devm_iio_trigger_alloc(&spi->dev, "%s-trigger", indio_dev->name); - if (st->trig == NULL) { + if (!st->trig) { ret = -ENOMEM; dev_err(&indio_dev->dev, "Failed to allocate iio trigger\n"); -- 2.27.0