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iio: adc: nxp-sar-adc: zero-initialize dma_slave_config

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nxp_sar_adc_start_cyclic_dma() only fills the RX-side members of
dma_slave_config before passing it to dmaengine_slave_config().

Zero-initialize the structure so unused members do not contain stack
garbage. Some DMA engines consult optional dma_slave_config fields, so
leaving them uninitialized can cause DMA setup failures.

Fixes: 4434072a89 ("iio: adc: Add the NXP SAR ADC support for the s32g2/3 platforms")
Signed-off-by: Shuvam Pandey <shuvampandey1@gmail.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Shuvam Pandey 2026-04-06 15:38:24 +05:45 committed by Jonathan Cameron
parent 1f4f0bcc52
commit 8ce176501f
1 changed files with 1 additions and 1 deletions
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drivers/iio/adc/nxp-sar-adc.c
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@ -676,7 +676,7 @@ static void nxp_sar_adc_dma_cb(void *data)
static int nxp_sar_adc_start_cyclic_dma(struct iio_dev *indio_dev)
{
struct nxp_sar_adc *info = iio_priv(indio_dev);
struct dma_slave_config config;
struct dma_slave_config config = { };
struct dma_async_tx_descriptor *desc;
int ret;