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crypto: omap-sham - Add the offset of sg page to vaddr

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kmap_atomic() gives only the page address of the input page.
Driver should take care of adding the offset of the scatterlist
within the page to the returned page address.
omap-sham driver is not adding the offset to page and directly operates
on the return vale of kmap_atomic(), because of which the following
error comes when running crypto tests:

00000000: d9 a1 1b 7c aa 90 3b aa 11 ab cb 25 00 b8 ac bf
[    2.338169] 00000010: c1 39 cd ff 48 d0 a8 e2 2b fa 33 a1
[    2.344008] alg: hash: Chunking test 1 failed for omap-sha256

So adding the scatterlist offset to vaddr.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Vutla, Lokesh 2015-04-02 15:32:45 +05:30 committed by Herbert Xu
parent 64a31be39b
commit 13cf394c8c
1 changed files with 1 additions and 0 deletions
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drivers/crypto/omap-sham.c
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@ -640,6 +640,7 @@ static size_t omap_sham_append_sg(struct omap_sham_reqctx *ctx)
while (ctx->sg) {
vaddr = kmap_atomic(sg_page(ctx->sg));
vaddr += ctx->sg->offset;
count = omap_sham_append_buffer(ctx,
vaddr + ctx->offset,