This is a note to let you know that I've just added the patch titled
dmaengine: idma64: Add check for dma_set_max_seg_size
to the 4.19-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-idma64-add-check-for-dma_set_max_seg_size.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 89fc7c2ea1b437ae22ad33971b7448d6d95e527b
Author: Chen Ni <nichen@xxxxxxxxxxx>
Date: Wed Apr 3 02:49:32 2024 +0000
dmaengine: idma64: Add check for dma_set_max_seg_size
[ Upstream commit 2b1c1cf08a0addb6df42f16b37133dc7a351de29 ]
As the possible failure of the dma_set_max_seg_size(), it should be
better to check the return value of the dma_set_max_seg_size().
Fixes: e3fdb1894cfa ("dmaengine: idma64: set maximum allowed segment size for DMA")
Signed-off-by: Chen Ni <nichen@xxxxxxxxxxx>
Acked-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240403024932.3342606-1-nichen@xxxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c
index 920e98dc7113e..b2fb42a4385c1 100644
--- a/drivers/dma/idma64.c
+++ b/drivers/dma/idma64.c
@@ -603,7 +603,9 @@ static int idma64_probe(struct idma64_chip *chip)
idma64->dma.dev = chip->sysdev;
- dma_set_max_seg_size(idma64->dma.dev, IDMA64C_CTLH_BLOCK_TS_MASK);
+ ret = dma_set_max_seg_size(idma64->dma.dev, IDMA64C_CTLH_BLOCK_TS_MASK);
+ if (ret)
+ return ret;
ret = dma_async_device_register(&idma64->dma);
if (ret)
