crypto: talitos - fix bug in sg_copy_end_to_buffer
authorLee Nipper <lee.nipper@gmail.com>
Mon, 19 Jul 2010 06:11:24 +0000 (14:11 +0800)
committerHerbert Xu <herbert@gondor.apana.org.au>
Mon, 19 Jul 2010 06:11:24 +0000 (14:11 +0800)
commit7260042b2d0397e7a8735ca47cd7839a5bb1210b
treeda92181f60f67f1e82378e59edfd13def6a51fe7
parent2716fbf63ee39eadc1aa9b3841b20f75b99a9bc3
crypto: talitos - fix bug in sg_copy_end_to_buffer

In function sg_copy_end_to_buffer, too much data
is copied when a segment in the scatterlist
has .length greater than the requested copy length.

This patch adds the limit checks to fix this bug of over copying,
which affected only the ahash algorithms.

Signed-off-by: Lee Nipper <lee.nipper@gmail.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers/crypto/talitos.c