iio: adc: stm32-adc: use = { } instead of memset()

Use { } instead of memset() to zero-initialize stack memory to simplify
the code.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250611-iio-zero-init-stack-with-instead-of-memset-v1-7-ebb2d0a24302@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c
index e84babf433853977b77aa283025f446353510a21..588c69e175f5129030eef9ebfe0eabb6412b1893 100644 (file)
--- a/drivers/iio/adc/stm32-adc.c
+++ b/drivers/iio/adc/stm32-adc.c
@@ -2470,7 +2470,7 @@ static int stm32_adc_chan_fw_init(struct iio_dev *indio_dev, bool timestamping)
 static int stm32_adc_dma_request(struct device *dev, struct iio_dev *indio_dev)
 {
        struct stm32_adc *adc = iio_priv(indio_dev);
-       struct dma_slave_config config;
+       struct dma_slave_config config = { };
        int ret;
 
        adc->dma_chan = dma_request_chan(dev, "rx");
@@ -2494,7 +2494,6 @@ static int stm32_adc_dma_request(struct device *dev, struct iio_dev *indio_dev)
        }
 
        /* Configure DMA channel to read data register */
-       memset(&config, 0, sizeof(config));
        config.src_addr = (dma_addr_t)adc->common->phys_base;
        config.src_addr += adc->offset + adc->cfg->regs->dr;
        config.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;