[PATCH] spi: stm32: fix missing pointer assignment in case of dma chaining

Alain Volmat alain.volmat at foss.st.com
Tue Feb 24 07:09:22 PST 2026


Commit c4f2c05ab029 ("spi: stm32: fix pointer-to-pointer variables usage")
introduced a regression since dma descriptors generated as part of the
stm32_spi_prepare_rx_dma_mdma_chaining function are not well propagated
to the caller function, leading to mdma-dma chaining being no more
functional.

Fixes: c4f2c05ab029 ("spi: stm32: fix pointer-to-pointer variables usage")
Signed-off-by: Alain Volmat <alain.volmat at foss.st.com>
---
 drivers/spi/spi-stm32.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c
index b99de8c4cc99..33f211e159ef 100644
--- a/drivers/spi/spi-stm32.c
+++ b/drivers/spi/spi-stm32.c
@@ -1625,6 +1625,9 @@ static int stm32_spi_prepare_rx_dma_mdma_chaining(struct stm32_spi *spi,
 		return -EINVAL;
 	}
 
+	*rx_mdma_desc = _mdma_desc;
+	*rx_dma_desc = _dma_desc;
+
 	return 0;
 }
 

---
base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f
change-id: 20260224-spi-stm32-chaining-fix-5363946e7f3a

Best regards,
-- 
Alain Volmat <alain.volmat at foss.st.com>




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