X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=crypto%2Fghash-generic.c;h=bf5f8d7f1a871370028a78a42f4ba0701b091f23;hb=fd1910098bb42815a475a53b94fdfdfe3aa38002;hp=be4425616931ffcf0f1747aa752d76f15379c989;hpb=a3ccf63ee643ef243cbf8918da8b3f9238f10029;p=pandora-kernel.git

diff --git a/crypto/ghash-generic.c b/crypto/ghash-generic.c
index be4425616931..bf5f8d7f1a87 100644
--- a/crypto/ghash-generic.c
+++ b/crypto/ghash-generic.c
@@ -67,6 +67,9 @@ static int ghash_update(struct shash_desc *desc,
 	struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm);
 	u8 *dst = dctx->buffer;
 
+	if (!ctx->gf128)
+		return -ENOKEY;
+
 	if (dctx->bytes) {
 		int n = min(srclen, dctx->bytes);
 		u8 *pos = dst + (GHASH_BLOCK_SIZE - dctx->bytes);
@@ -119,6 +122,9 @@ static int ghash_final(struct shash_desc *desc, u8 *dst)
 	struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm);
 	u8 *buf = dctx->buffer;
 
+	if (!ctx->gf128)
+		return -ENOKEY;
+
 	ghash_flush(ctx, dctx);
 	memcpy(dst, buf, GHASH_BLOCK_SIZE);
 
@@ -167,4 +173,5 @@ module_exit(ghash_mod_exit);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("GHASH Message Digest Algorithm");
-MODULE_ALIAS("ghash");
+MODULE_ALIAS_CRYPTO("ghash");
+MODULE_ALIAS_CRYPTO("ghash-generic");