diff --git a/crypto/hmac.c b/crypto/hmac.c
index 6691981..e3f5c0f 100644
--- a/crypto/hmac.c
+++ b/crypto/hmac.c
@@ -158,9 +158,11 @@
 	desc.tfm = ctx->child;
 	desc.flags = pdesc->flags & CRYPTO_TFM_REQ_MAY_SLEEP;
 
+	sg_init_table(sg1, 2);
 	sg_set_buf(sg1, ipad, bs);
+	sg_set_page(&sg1[1], (void *) sg, 0, 0);
 
-	sg_set_page(&sg[1], (void *) sg, 0, 0);
+	sg_init_table(sg2, 1);
 	sg_set_buf(sg2, opad, bs + ds);
 
 	err = crypto_hash_digest(&desc, sg1, nbytes + bs, digest);