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authorVutla, Lokesh <lokeshvutla@ti.com>2015-04-02 13:02:45 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2015-04-03 12:53:32 +0300
commit13cf394c8c79b5655cdc76f7ae0d9869a1434103 (patch)
tree00f2a68b409cfd24881af5c466fa5a76db8a8933 /drivers/crypto/omap-sham.c
parent64a31be39b8c0c0b0a00cf46a3e10a90dc336a0e (diff)
downloadlinux-13cf394c8c79b5655cdc76f7ae0d9869a1434103.tar.xz
crypto: omap-sham - Add the offset of sg page to vaddr
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>
Diffstat (limited to 'drivers/crypto/omap-sham.c')
-rw-r--r--drivers/crypto/omap-sham.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 21fd515068c5..4d63e0d4da9a 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -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,