From a18ccc365f1a29f1b6d7b4a1edbaffb7100fb1f6 Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Fri, 26 May 2017 12:12:51 +0200
Subject: [PATCH] crypto: drbg - Fixes panic in wait_for_completion call

Initialise ctr_completion variable before use.

Signed-off-by: Harsh Jain <harshjain.prof@gmail.com>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/drbg.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/crypto/drbg.c b/crypto/drbg.c
index fa749f470135..433c4258e484 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1691,6 +1691,7 @@ static int drbg_init_sym_kernel(struct drbg_state *drbg)
 		return PTR_ERR(sk_tfm);
 	}
 	drbg->ctr_handle = sk_tfm;
+	init_completion(&drbg->ctr_completion);
 
 	req = skcipher_request_alloc(sk_tfm, GFP_KERNEL);
 	if (!req) {
-- 
2.20.1