vxworks/mempart: fix error status upon failure to create partition

Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

lib/vxworks/memPartLib.c

@@ -48,17 +48,21 @@ PART_ID memPartCreate(char *pPool, unsigned int poolSize)
 	pthread_mutexattr_t mattr;
 	struct wind_mempart *mp;
 	struct service svc;
+	int ret;
 
 	CANCEL_DEFER(svc);
 
 	mp = xnmalloc(sizeof(*mp));
-	if (mp == NULL)
+	if (mp == NULL) {
+		errno = S_memLib_NOT_ENOUGH_MEMORY;
 		goto fail;
+	}
 
-	if (__heapobj_init(&mp->hobj, NULL, poolSize, pPool)) {
+	ret = __heapobj_init(&mp->hobj, NULL, poolSize, pPool);
+	if (ret) {
 		xnfree(mp);
+		errno = S_memLib_INVALID_NBYTES;
 	fail:
-		errno = S_memLib_NOT_ENOUGH_MEMORY;
 		CANCEL_RESTORE(svc);
 		return (PART_ID)0;
 	}