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>

1 files changed, 1 insertions, 0 deletions

diff --git a/crypto/drbg.c b/crypto/drbg.c
index cdb27ac4b226..633a88e93ab0 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) {