From 8ce176501f836634f9c0419c0820140f968e9dc5 Mon Sep 17 00:00:00 2001 From: Shuvam Pandey Date: Mon, 6 Apr 2026 15:38:24 +0545 Subject: [PATCH] iio: adc: nxp-sar-adc: zero-initialize dma_slave_config 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: 4434072a893e ("iio: adc: Add the NXP SAR ADC support for the s32g2/3 platforms") Signed-off-by: Shuvam Pandey Reviewed-by: David Lechner Cc: Signed-off-by: Jonathan Cameron --- drivers/iio/adc/nxp-sar-adc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/nxp-sar-adc.c b/drivers/iio/adc/nxp-sar-adc.c index 1711cae7d872..8f4ed3db94f0 100644 --- a/drivers/iio/adc/nxp-sar-adc.c +++ b/drivers/iio/adc/nxp-sar-adc.c @@ -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;