uio: 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 inst ances are converted, vm_fault_t will become a di stinct type.

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

---
v2: Modified the change log

v3: Updated the change log

 drivers/uio/uio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index fd48483..d9235f3 100644
@@ -597,7 +597,7 @@ static int uio_find_mem_index(struct vm_area_struct *vma)
 	return -1;
 }
 
-static int uio_vma_fault(struct vm_fault *vmf)
+static vm_fault_t uio_vma_fault(struct vm_fault *vmf)
 {
 	struct uio_device *idev = vmf->vma->vm_private_data;
 	struct page *page;

--
1.9.1