V4L/DVB (4036): Fix some compilation warnings

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/meye.c b/drivers/media/video/meye.c
index 850bee9..595a3ea 100644
--- a/drivers/media/video/meye.c
+++ b/drivers/media/video/meye.c
@@ -1682,13 +1682,13 @@
 
 static void meye_vm_open(struct vm_area_struct *vma)
 {
-	int idx = (int)vma->vm_private_data;
+	long idx = (long)vma->vm_private_data;
 	meye.vma_use_count[idx]++;
 }
 
 static void meye_vm_close(struct vm_area_struct *vma)
 {
-	int idx = (int)vma->vm_private_data;
+	long idx = (long)vma->vm_private_data;
 	meye.vma_use_count[idx]--;
 }