Missing return on error. Coverity ID 115.

engines/ccgost/gost_ameth.c

diff --git a/engines/ccgost/gost_ameth.c b/engines/ccgost/gost_ameth.c
index 06f8c1e..807aff6 100644
--- a/engines/ccgost/gost_ameth.c
+++ b/engines/ccgost/gost_ameth.c
@@ -119,6 +119,7 @@
 		{
 		GOSTerr(GOST_F_DECODE_GOST_ALGOR_PARAMS,
 			GOST_R_BAD_PKEY_PARAMETERS_FORMAT);
+		return 0;
 		}	
 	param_nid = OBJ_obj2nid(gkp->key_params);
 	GOST_KEY_PARAMS_free(gkp);