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authorTadeusz Struk <tadeusz.struk@intel.com>2015-05-15 10:18:37 -0700
committerHerbert Xu <herbert@gondor.apana.org.au>2015-05-18 12:13:06 +0800
commit7b2a18e05feb86f9be25602abfa9604a6b977f79 (patch)
tree7f4592eb208f89b5d4b13f61265148eeb28ed5d3 /crypto
parentec59a65d694e5fd99d76565b93468c99ae8dff79 (diff)
downloadkernel-7b2a18e05feb86f9be25602abfa9604a6b977f79.tar.gz
crypto: algif_aead - fix invalid sgl linking
This patch fixes it. Also minor updates to comments. Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/algif_aead.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c
index 00a6fe166fed..69abada22373 100644
--- a/crypto/algif_aead.c
+++ b/crypto/algif_aead.c
@@ -33,7 +33,7 @@ struct aead_ctx {
/*
* RSGL_MAX_ENTRIES is an artificial limit where user space at maximum
* can cause the kernel to allocate RSGL_MAX_ENTRIES * ALG_MAX_PAGES
- * bytes
+ * pages
*/
#define RSGL_MAX_ENTRIES ALG_MAX_PAGES
struct af_alg_sgl rsgl[RSGL_MAX_ENTRIES];
@@ -435,11 +435,10 @@ static int aead_recvmsg(struct socket *sock, struct msghdr *msg, size_t ignored,
if (err < 0)
goto unlock;
usedpages += err;
- /* chain the new scatterlist with initial list */
+ /* chain the new scatterlist with previous one */
if (cnt)
- scatterwalk_crypto_chain(ctx->rsgl[0].sg,
- ctx->rsgl[cnt].sg, 1,
- sg_nents(ctx->rsgl[cnt-1].sg));
+ af_alg_link_sg(&ctx->rsgl[cnt-1], &ctx->rsgl[cnt]);
+
/* we do not need more iovecs as we have sufficient memory */
if (outlen <= usedpages)
break;