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[ Upstream commitc1545f1a20] The retured value from ib_dma_map_sg saved in dma_nents variable. To avoid future mismatch between types, define dma_nents as an integer instead of unsigned. Fixes:57b26497fa("IB/iser: Pass the correct number of entries for dma mapped SGL") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Israel Rukshin <israelr@mellanox.com> Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Acked-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Sasha Levin <sashal@kernel.org>