Crypto/chcr: Calculate src and dst sg lengths separately for dma map
This patch calculates src and dst sg lengths separately for dma mapping in case of aead operation. This fixes a panic which occurs due to the accessing of a zero length sg. Panic: [ 138.173225] kernel BUG at drivers/iommu/intel-iommu.c:1184! Signed-off-by: Ayush Sawal <ayush.sawal@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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