commit e8fa6b3f0835b4fd7ab7ab6f51889a5cd0b9169b
author Abel Radenac <a.radenac@lacroix-sofrel.com> Mon Mar 29 18:14:29 2021 +0200
committer Maureen Helm <maureen.helm@intel.com> Fri Dec 17 11:52:22 2021 -0600
tree 292ecf43b19f1a5035bf5292f52c1d13b0ce9542
parent 9a07e5ac0df57be3171a7fb1cc0bf6de9792be44

drivers: dma_stm32: init DMA struct in dma_stm32_configure

The init struct for DMA peripheral is allocated in stack
and must be initialized (e.g. with LL_DMA_StructInit here)
to avoid loading undefined values in the DMA peripheral
registers.

Signed-off-by: Abel Radenac <a.radenac@lacroix-sofrel.com>

drivers/dma/dma_stm32.c

diff --git a/drivers/dma/dma_stm32.c b/drivers/dma/dma_stm32.c
index b1ad48f..d90278b 100644
--- a/drivers/dma/dma_stm32.c
+++ b/drivers/dma/dma_stm32.c
@@ -265,9 +265,11 @@
 	struct dma_stm32_stream *stream =
 				&dev_config->streams[id - STREAM_OFFSET];
 	DMA_TypeDef *dma = (DMA_TypeDef *)dev_config->base;
-	LL_DMA_InitTypeDef DMA_InitStruct = {0};
+	LL_DMA_InitTypeDef DMA_InitStruct;
 	int ret;
 
+	LL_DMA_StructInit(&DMA_InitStruct);
+
 	/* give channel from index 0 */
 	id = id - STREAM_OFFSET;