From: Tudor-Dan Ambarus <tudor.ambarus@microchip.com>
Date: Thu, 25 May 2017 07:18:09 +0000 (+0300)
Subject: crypto: dh - comply with crypto_kpp_maxsize()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7f69105077bfb36a8ff9c2ee20af50d921445fc0;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

crypto: dh - comply with crypto_kpp_maxsize()

crypto_kpp_maxsize() asks for the output buffer size without
caring for errors. It allways assume that will be called after
a valid setkey. Comply with it and return what he wants.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/crypto/dh.c b/crypto/dh.c
index e151f12775ca..b1032a5c1bfa 100644
--- a/crypto/dh.c
+++ b/crypto/dh.c
@@ -147,7 +147,7 @@ err_free_val:
 	return ret;
 }
 
-static int dh_max_size(struct crypto_kpp *tfm)
+static unsigned int dh_max_size(struct crypto_kpp *tfm)
 {
 	struct dh_ctx *ctx = dh_get_ctx(tfm);