Commit f8ac59f5 authored by Miquel Raynal's avatar Miquel Raynal Committed by Jonathan Cameron
Browse files

iio: adc: stm32-dfsdm: Avoid dereferencing ->currentmode 



This is an internal variable of the core, let's use the
iio_buffer_enabled() helper which is exported for the following purpose:
telling if the current mode is a buffered mode, which is precisely what
this driver looks for.

Cc: Olivier Moysan <olivier.moysan@foss.st.com>
Cc: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: default avatarFabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20220207143840.707510-4-miquel.raynal@bootlin.com


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent f4d7f883

drivers/iio/adc/stm32-dfsdm-adc.c

+2 −3
Original line number Diff line number Diff line
@@ -466,8 +466,7 @@ static int stm32_dfsdm_channels_configure(struct iio_dev *indio_dev, 
	 * In continuous mode, use fast mode configuration,

	 * if it provides a better resolution.

	 */

	if (adc->nconv == 1 && !trig &&

	    (indio_dev->currentmode & INDIO_BUFFER_SOFTWARE)) {

	if (adc->nconv == 1 && !trig && iio_buffer_enabled(indio_dev)) {

		if (fl->flo[1].res >= fl->flo[0].res) {

			fl->fast = 1;

			flo = &fl->flo[1];
@@ -562,7 +561,7 @@ static int stm32_dfsdm_filter_configure(struct iio_dev *indio_dev, 
		cr1 = DFSDM_CR1_RCH(chan->channel);



		/* Continuous conversions triggered by SPI clk in buffer mode */

		if (indio_dev->currentmode & INDIO_BUFFER_SOFTWARE)

		if (iio_buffer_enabled(indio_dev))

			cr1 |= DFSDM_CR1_RCONT(1);



		cr1 |= DFSDM_CR1_RSYNC(fl->sync_mode);