From: Shuvam Pandey Date: Mon, 6 Apr 2026 09:53:24 +0000 (+0545) Subject: iio: adc: nxp-sar-adc: zero-initialize dma_slave_config X-Git-Tag: v7.1-rc6~11^2~9^2~17 X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=8ce176501f836634f9c0419c0820140f968e9dc5;p=thirdparty%2Fkernel%2Flinux.git 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 --- 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;