[PATCH] of: include errno.h

[Kalle Valo]

When compiling ath6kl for beagleboard (omap2plus_defconfig plus
CONFIG_ATH6KL, CONFIG_OF disable) with current linux-next compilation
fails:

include/linux/of.h:269: error: 'ENOSYS' undeclared (first use in this function)
include/linux/of.h:276: error: 'ENOSYS' undeclared (first use in this function)
include/linux/of.h:289: error: 'ENOSYS' undeclared (first use in this function)

Fix this by including errno.h from of.h.

Signed-off-by: Kalle Valo <kvalo at qca.qualcomm.com>
---
 include/linux/of.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/include/linux/of.h b/include/linux/of.h
index 9180dc5..219c29d 100644
--- a/include/linux/of.h
+++ b/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>