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authorAmelie Delaunay <amelie.delaunay@foss.st.com>2022-10-17 15:14:13 +0200
committerVinod Koul <vkoul@kernel.org>2022-10-19 19:01:19 +0530
commit5a637f83d96fc9f27e93385924e7253a5f5187bc (patch)
treebd298cf0cc0b34d36efef33c4baa96338e5a8abe /drivers/dma/stm32-mdma.c
parent9abf2313adc1ca1b6180c508c25f22f9395cc780 (diff)
dmaengine: stm32-mdma: memset stm32_mdma_chan_config struct before using it
New bool m2m_hw has been added at the end of stm32_mdma_chan_config struct to support the STM32 DMA MDMA chaining. m2m_hw is set true in stm32_mdma_slave_config() if peripheral_size is set, but m2m_hw is never initialized false. To ensure this case, and any further new update of the structure, memset it to 0 before using it. Fixes: 696874322771 ("dmaengine: stm32-mdma: add support to be triggered by STM32 DMA") Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com> Link: https://lore.kernel.org/r/20221017131413.202567-1-amelie.delaunay@foss.st.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/stm32-mdma.c')
-rw-r--r--drivers/dma/stm32-mdma.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c
index e28acbcb53f4..b9d4c843635f 100644
--- a/drivers/dma/stm32-mdma.c
+++ b/drivers/dma/stm32-mdma.c
@@ -1539,6 +1539,7 @@ static struct dma_chan *stm32_mdma_of_xlate(struct of_phandle_args *dma_spec,
return NULL;
}
+ memset(&config, 0, sizeof(config));
config.request = dma_spec->args[0];
config.priority_level = dma_spec->args[1];
config.transfer_config = dma_spec->args[2];