Index: kernel/generic/include/errno.h
===================================================================
--- kernel/generic/include/errno.h	(revision fd1210a5f1aaacb51553527adc91c21643397af9)
+++ kernel/generic/include/errno.h	(revision 5e53e02708b7fe7afa7635c8ea1a0738d1329937)
@@ -57,6 +57,11 @@
 #define EADDRNOTAVAIL	-12	/* Address not available. */
 #define ETIMEOUT        -13     /* Timeout expired */
+//MH
+#ifndef EINVAL
 #define EINVAL          -14     /* Invalid value */
+#endif
+#ifndef EBUSY
 #define EBUSY           -15     /* Resource is busy */
+#endif
 #define EOVERFLOW	-16	/* The result does not fit its size. */
 #define EINTR		-17	/* Operation was interrupted. */