[PATCH] usb: gadget: #include device.h in gadget.h

[Patrick Pannuto <ppannuto@codeaurora.org>]

gadget.h uses structures defined in device.h, it must include it. In
most cases, gadget.h is preceded by linux/platform_device.h, but if
you are grouping headers sanely, device.h may not be pulled in until
*after* gadget (e.g. mach/msm_device.h), thus gadget.h should not
rely on something else #including device.h

include/linux/usb/gadget.h:488: error: field 'dev' has incomplete type
include/linux/usb/gadget.h: In function 'set_gadget_data':
include/linux/usb/gadget.h:492:
	error: implicit declaration of function 'dev_set_drvdata'
include/linux/usb/gadget.h: In function 'get_gadget_data':
include/linux/usb/gadget.h:494:
	error: implicit declaration of function 'dev_get_drvdata'
include/linux/usb/gadget.h:494:
	warning: return makes pointer from integer without a cast
include/linux/usb/gadget.h: At top level:
include/linux/usb/gadget.h:780: error: field 'driver' has incomplete type
In file included from include/linux/dmaengine.h:24,
                 from include/linux/skbuff.h:30,
                 from include/linux/if_ether.h:124,
                 from drivers/usb/gadget/u_ether.h:27,
                 from drivers/usb/gadget/android.c:37:
include/linux/device.h:494: error: conflicting types for 'dev_get_drvdata'
include/linux/usb/gadget.h:494:
	note: previous implicit declaration of 'dev_get_drvdata' was here
include/linux/device.h:495:
	warning: conflicting types for 'dev_set_drvdata'
include/linux/usb/gadget.h:492:
	note: previous implicit declaration of 'dev_set_drvdata' was here

Change-Id: Ia06309b76ac91fc305a1a50fb5e3469cb6adb623
Signed-off-by: Patrick Pannuto <ppannuto@codeaurora.org>
---
 include/linux/usb/gadget.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index bbf45d5..ddca035 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -15,6 +15,8 @@
 #ifndef __LINUX_USB_GADGET_H
 #define __LINUX_USB_GADGET_H
 
+#include <linux/device.h>
+
 struct usb_ep;
 
 /**
-- 
1.7.1