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crypto: cavium/cpt - fix DMA cleanup using wrong loop index

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[ Upstream commit 9dbf173bd3 ]

The sg_cleanup error path used list[i] instead of list[j] when unmapping
DMA buffers, leaking successfully mapped entries and repeatedly unmapping
the failed one.

Fixes: c694b23329 ("crypto: cavium - Add the Virtual Function driver for CPT")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Felix Gu
2026-07-24 16:16:10 +02:00
committed by Greg Kroah-Hartman
parent 5f99a396f7
commit fb4d57b833
1 changed files with 2 additions and 2 deletions
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drivers/crypto/cavium/cpt/cptvf_reqmanager.c
+2 -2
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@@ -108,8 +108,8 @@ static int setup_sgio_components(struct cpt_vf *cptvf, struct buf_ptr *list,
sg_cleanup:
for (j = 0; j < i; j++) {
if (list[j].dma_addr) {
dma_unmap_single(&pdev->dev, list[i].dma_addr,
list[i].size, DMA_BIDIRECTIONAL);
dma_unmap_single(&pdev->dev, list[j].dma_addr,
list[j].size, DMA_BIDIRECTIONAL);
}
list[j].dma_addr = 0;