Fixup for difference between Linus HEAD and linux-next.

drivers/staging/frontier/alphatrack.c

diff --git a/drivers/staging/frontier/alphatrack.c b/drivers/staging/frontier/alphatrack.c
index 226b231..0c55bb2 100644
--- a/drivers/staging/frontier/alphatrack.c
+++ b/drivers/staging/frontier/alphatrack.c
@@ -33,6 +33,7 @@
  * can be buffered up before the light change makes it to the interface.
  */
 
+#include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/slab.h>

drivers/staging/frontier/tranzport.c

diff --git a/drivers/staging/frontier/tranzport.c b/drivers/staging/frontier/tranzport.c
index 2f86163..8b5382a 100644
--- a/drivers/staging/frontier/tranzport.c
+++ b/drivers/staging/frontier/tranzport.c
@@ -32,6 +32,7 @@
  * can be buffered up before the light change makes it to the interface.
  */
 
+#include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/slab.h>

drivers/usb/gadget/f_hid.c

diff --git a/drivers/usb/gadget/f_hid.c b/drivers/usb/gadget/f_hid.c
index a95290a..ade6ea7 100644
--- a/drivers/usb/gadget/f_hid.c
+++ b/drivers/usb/gadget/f_hid.c
@@ -9,6 +9,7 @@
  * (at your option) any later version.
  */
 
+#include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/hid.h>