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iio: adc: ad9467: use the more common !val NULL check

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Check !val instead of directing checking for NULL (val == NULL).
No functional changes intended.

Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20231207-iio-backend-prep-v2-7-a4a33bc4d70e@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Nuno Sa 2023-12-07 13:39:30 +01:00 committed by Jonathan Cameron
parent 6dd3fa9fcc
commit 8bdfa4a2fe
1 changed files with 1 additions and 1 deletions
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drivers/iio/adc/ad9467.c
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@ -158,7 +158,7 @@ static int ad9467_reg_access(struct adi_axi_adc_conv *conv, unsigned int reg,
struct spi_device *spi = st->spi;
int ret;
if (readval == NULL) {
if (!readval) {
guard(mutex)(&st->lock);
ret = ad9467_spi_write(spi, reg, writeval);
if (ret)