android: binder: Change return type to vm_fault_t

Use new return type vm_fault_t for fault handler in
struct vm_operations_struct. For now, this is just
documenting that the function returns a VM_FAULT
value rather than an errno. Once all instances are
converted, vm_fault_t will become a distinct type.

Reference id -> 1c8f422059ae ("mm: change return type
to vm_fault_t")

Signed-off-by: Souptick Joarder <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/android/binder.c

···
 	binder_defer_work(proc, BINDER_DEFERRED_PUT_FILES);
 }
 
-static int binder_vm_fault(struct vm_fault *vmf)
+static vm_fault_t binder_vm_fault(struct vm_fault *vmf)
 {
 	return VM_FAULT_SIGBUS;
 }