This is a note to let you know that I've just added the patch titled
crypto: sahara - fix error handling in sahara_hw_descriptor_create()
to the 5.15-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:
crypto-sahara-fix-error-handling-in-sahara_hw_descri.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 0c48d0efdf84647b26faedf47b2d5bce910a6c5a
Author: Ovidiu Panait <ovidiu.panait@xxxxxxxxxxxxx>
Date: Fri Dec 1 19:06:23 2023 +0200
crypto: sahara - fix error handling in sahara_hw_descriptor_create()
[ Upstream commit ee6e6f0a7f5b39d50a5ef5fcc006f4f693db18a7 ]
Do not call dma_unmap_sg() for scatterlists that were not mapped
successfully.
Fixes: 5de8875281e1 ("crypto: sahara - Add driver for SAHARA2 accelerator.")
Signed-off-by: Ovidiu Panait <ovidiu.panait@xxxxxxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c
index caa54d5312e9..f9fd64178a59 100644
--- a/drivers/crypto/sahara.c
+++ b/drivers/crypto/sahara.c
@@ -484,13 +484,14 @@ static int sahara_hw_descriptor_create(struct sahara_dev *dev)
DMA_TO_DEVICE);
if (ret != dev->nb_in_sg) {
dev_err(dev->device, "couldn't map in sg\n");
- goto unmap_in;
+ return -EINVAL;
}
+
ret = dma_map_sg(dev->device, dev->out_sg, dev->nb_out_sg,
DMA_FROM_DEVICE);
if (ret != dev->nb_out_sg) {
dev_err(dev->device, "couldn't map out sg\n");
- goto unmap_out;
+ goto unmap_in;
}
/* Create input links */
@@ -538,9 +539,6 @@ static int sahara_hw_descriptor_create(struct sahara_dev *dev)
return 0;
-unmap_out:
- dma_unmap_sg(dev->device, dev->out_sg, dev->nb_out_sg,
- DMA_FROM_DEVICE);
unmap_in:
dma_unmap_sg(dev->device, dev->in_sg, dev->nb_in_sg,
DMA_TO_DEVICE);
