if (!dctx->bytes) {
ret = crypt_s390_kimd(KIMD_GHASH, ctx, buf,
GHASH_BLOCK_SIZE);
- BUG_ON(ret != GHASH_BLOCK_SIZE);
+ if (ret != GHASH_BLOCK_SIZE)
+ return -EIO;
}
}
n = srclen & ~(GHASH_BLOCK_SIZE - 1);
if (n) {
ret = crypt_s390_kimd(KIMD_GHASH, ctx, src, n);
- BUG_ON(ret != n);
+ if (ret != n)
+ return -EIO;
src += n;
srclen -= n;
}
return 0;
}
-static void ghash_flush(struct ghash_ctx *ctx, struct ghash_desc_ctx *dctx)
+static int ghash_flush(struct ghash_ctx *ctx, struct ghash_desc_ctx *dctx)
{
u8 *buf = dctx->buffer;
int ret;
memset(pos, 0, dctx->bytes);
ret = crypt_s390_kimd(KIMD_GHASH, ctx, buf, GHASH_BLOCK_SIZE);
- BUG_ON(ret != GHASH_BLOCK_SIZE);
+ if (ret != GHASH_BLOCK_SIZE)
+ return -EIO;
}
dctx->bytes = 0;
+ return 0;
}
static int ghash_final(struct shash_desc *desc, u8 *dst)
{
struct ghash_desc_ctx *dctx = shash_desc_ctx(desc);
struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm);
+ int ret;
- ghash_flush(ctx, dctx);
- memcpy(dst, ctx->icv, GHASH_BLOCK_SIZE);
-
- return 0;
+ ret = ghash_flush(ctx, dctx);
+ if (!ret)
+ memcpy(dst, ctx->icv, GHASH_BLOCK_SIZE);
+ return ret;
}
static struct shash_alg ghash_alg = {