[CRYPTO] users: Fix up scatterlist conversion errors

This patch fixes the errors made in the users of the crypto layer during
the sg_init_table conversion.  It also adds a few conversions that were
missing altogether.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 7a472b1..9d70289 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -279,6 +279,8 @@
 	int offset;
 	int remainder_of_page;
 
+	sg_init_table(sg, sg_size);
+
 	while (size > 0 && i < sg_size) {
 		pg = virt_to_page(addr);
 		offset = offset_in_page(addr);