Now that scatterwalk_sg_chain sets the chain pointer bit the sg_page
call in scatterwalk_sg_next hits a BUG_ON when CONFIG_DEBUG_SG is
enabled. Use sg_chain_ptr instead of sg_page on a chain entry.
Cc: [email protected]
Signed-off-by: Tom Lendacky <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>