Merge branch 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6

* 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6:
  ARM: mark empty gpio.h files empty
  gpio: Fix ARM versatile-express build failure
  of: include errno.h

arch/arm/mach-lpc32xx/include/mach/gpio.h

+/* empty */

arch/arm/mach-tegra/include/mach/gpio.h

+/* empty */

arch/arm/mach-u300/include/mach/gpio.h

+/* empty */

arch/arm/mach-vexpress/include/mach/gpio.h

+/* empty */

include/linux/of.h

@@ -17,6 +17,7 @@
  */
 #include <linux/types.h>
 #include <linux/bitops.h>
+#include <linux/errno.h>
 #include <linux/kref.h>
 #include <linux/mod_devicetable.h>
 #include <linux/spinlock.h>