crypto: drbg - Fixes panic in wait_for_completion call

Initialise ctr_completion variable before use.

Cc: <stable@vger.kernel.org>
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>

diff --git a/crypto/drbg.c b/crypto/drbg.c
index cdb27ac4b2266eccff2ba89a5388ec2fbf6d18bc..633a88e93ab0c421b7b01a041726ad9563ce2d49 100644 (file)
--- 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) {