This is a note to let you know that I've just added the patch titled
dmaengine: stm32-mdma: fix chan initialization in stm32_mdma_irq_handler()
to the 5.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dmaengine-stm32-mdma-fix-chan-initialization-in-stm3.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 69e487b59142b5fdb3d94747e1710b56650c7c2b
Author: Amelie Delaunay <amelie.delaunay@xxxxxxxxxxx>
Date: Wed May 4 17:53:21 2022 +0200
dmaengine: stm32-mdma: fix chan initialization in stm32_mdma_irq_handler()
[ Upstream commit da3b8ddb464bd49b6248d00ca888ad751c9e44fd ]
The parameter to pass back to the handler function when irq has been
requested is a struct stm32_mdma_device pointer, not a struct
stm32_mdma_chan pointer.
Even if chan is reinit later in the function, remove this wrong
initialization.
Fixes: a4ffb13c8946 ("dmaengine: Add STM32 MDMA driver")
Signed-off-by: Amelie Delaunay <amelie.delaunay@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220504155322.121431-3-amelie.delaunay@xxxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c
index 1e6bc22ddae9..f8c8b9d76aad 100644
--- a/drivers/dma/stm32-mdma.c
+++ b/drivers/dma/stm32-mdma.c
@@ -1316,7 +1316,7 @@ static void stm32_mdma_xfer_end(struct stm32_mdma_chan *chan)
static irqreturn_t stm32_mdma_irq_handler(int irq, void *devid)
{
struct stm32_mdma_device *dmadev = devid;
- struct stm32_mdma_chan *chan = devid;
+ struct stm32_mdma_chan *chan;
u32 reg, id, ccr, ien, status;
/* Find out which channel generates the interrupt */
