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authorHerbert Xu <herbert@gondor.apana.org.au>2011-02-07 20:26:06 +1100
committerHerbert Xu <herbert@gondor.apana.org.au>2011-02-07 20:26:06 +1100
commit9d20b571f5bda7273656e1b86ef91eddc94adacc (patch)
tree54ed61190b0710813b68fadbbd25bed47c3f31f1 /arch/s390/crypto
parent1bae4ce27c9c90344f23c65ea6966c50ffeae2f5 (diff)
downloadlinux-linaro-stable-9d20b571f5bda7273656e1b86ef91eddc94adacc.tar.gz
crypto: sha-s390 - Reset index after processing partial block
The partial block handling in sha-s390 is broken when we get a partial block that is followed by an update which fills it with bytes left-over. Instead of storing the newly left-over bytes at the start of the buffer, it will be stored immediately after the previous partial block. This patch fixes this by resetting the index pointer. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/s390/crypto')
-rw-r--r--arch/s390/crypto/sha_common.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/crypto/sha_common.c b/arch/s390/crypto/sha_common.c
index f42dbabc0d30..48884f89ab92 100644
--- a/arch/s390/crypto/sha_common.c
+++ b/arch/s390/crypto/sha_common.c
@@ -38,6 +38,7 @@ int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len)
BUG_ON(ret != bsize);
data += bsize - index;
len -= bsize - index;
+ index = 0;
}
/* process as many blocks as possible */