* [PATCHv2] crypto: cesa: check for sram_dma error
@ 2026-07-17 22:58 Rosen Penev
0 siblings, 0 replies; only message in thread
From: Rosen Penev @ 2026-07-17 22:58 UTC (permalink / raw)
To: linux-crypto
Cc: Srujana Challa, Bharat Bhushan, Herbert Xu, David S. Miller,
Boris Brezillon, Robin Murphy, open list
dma_map_resource() might fail. In such a case, don't call
dma_unmap_resource()
Fixes: 37d728f76c41 ("crypto: marvell/cesa - Fix DMA API misuse")
Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
v2: use dma_mapping_error(). Fix Fixes tag.
drivers/crypto/marvell/cesa/cesa.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/crypto/marvell/cesa/cesa.c b/drivers/crypto/marvell/cesa/cesa.c
index 75d8ba23d9a2..92e977027c8a 100644
--- a/drivers/crypto/marvell/cesa/cesa.c
+++ b/drivers/crypto/marvell/cesa/cesa.c
@@ -406,7 +406,8 @@ static void mv_cesa_put_sram(struct platform_device *pdev, int idx)
if (engine->pool)
gen_pool_free(engine->pool, (unsigned long)engine->sram_pool,
cesa->sram_size);
- else
+ else if (engine->sram &&
+ !dma_mapping_error(cesa->dev, engine->sram_dma))
dma_unmap_resource(cesa->dev, engine->sram_dma,
cesa->sram_size, DMA_BIDIRECTIONAL, 0);
}
--
2.55.0
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