Index: kernel/generic/include/errno.h
===================================================================
--- kernel/generic/include/errno.h	(revision f2f66363390bc900db7aa71e8b2ef432654ff852)
+++ kernel/generic/include/errno.h	(revision 8e33e1dcb1b815d80298a0dd8ac7a357701e5f55)
@@ -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. */