check gctx for NULL before cleanup.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Yang <kaishen.yy@antfin.com>
Reviewed-by: Neil Horman <nhorman@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/27795)

diff --git a/providers/implementations/keymgmt/ecx_kmgmt.c b/providers/implementations/keymgmt/ecx_kmgmt.c
index 294b8839aa32f4c6c8ca366f170b55e2c05148b1..dfa2e00621209814e7fb3f90335b1818cbf581fe 100644 (file)
--- a/providers/implementations/keymgmt/ecx_kmgmt.c
+++ b/providers/implementations/keymgmt/ecx_kmgmt.c
@@ -515,8 +515,10 @@ static void *ecx_gen_init(void *provctx, int selection,
 #endif
     }
     if (!ecx_gen_set_params(gctx, params)) {
-        ecx_gen_cleanup(gctx);
-        gctx = NULL;
+        if (gctx != NULL) {
+            ecx_gen_cleanup(gctx);
+            gctx = NULL;
+        }
     }
     return gctx;
 }