Change ARG_CHECK_NO_RETURN to ARG_CHECK_VOID which returns (void)

Author: real-or-random

src/secp256k1.c

@@ -51,9 +51,10 @@
     } \
 } while(0)
 
-#define ARG_CHECK_NO_RETURN(cond) do { \
+#define ARG_CHECK_VOID(cond) do { \
     if (EXPECT(!(cond), 0)) { \
         secp256k1_callback_call(&ctx->illegal_callback, #cond); \
+        return; \
     } \
 } while(0)
 
@@ -166,7 +167,7 @@ secp256k1_context* secp256k1_context_clone(const secp256k1_context* ctx) {
 }
 
 void secp256k1_context_preallocated_destroy(secp256k1_context* ctx) {
-    ARG_CHECK_NO_RETURN(ctx != secp256k1_context_static);
+    ARG_CHECK_VOID(ctx != secp256k1_context_static);
     if (ctx != NULL) {
         secp256k1_ecmult_gen_context_clear(&ctx->ecmult_gen_ctx);
     }
@@ -183,7 +184,7 @@ void secp256k1_context_set_illegal_callback(secp256k1_context* ctx, void (*fun)(
     /* We compare pointers instead of checking secp256k1_context_is_proper() here
        because setting callbacks is allowed on *copies* of the static context:
        it's harmless and makes testing easier. */
-    ARG_CHECK_NO_RETURN(ctx != secp256k1_context_static);
+    ARG_CHECK_VOID(ctx != secp256k1_context_static);
     if (fun == NULL) {
         fun = secp256k1_default_illegal_callback_fn;
     }
@@ -195,7 +196,7 @@ void secp256k1_context_set_error_callback(secp256k1_context* ctx, void (*fun)(co
     /* We compare pointers instead of checking secp256k1_context_is_proper() here
        because setting callbacks is allowed on *copies* of the static context:
        it's harmless and makes testing easier. */
-    ARG_CHECK_NO_RETURN(ctx != secp256k1_context_static);
+    ARG_CHECK_VOID(ctx != secp256k1_context_static);
     if (fun == NULL) {
         fun = secp256k1_default_error_callback_fn;
     }