hyperv: hyperv_fb: match wait_for_completion_timeout return type

The return type of wait_for_completion_timeout is unsigned long not
int. This patch fixes up the declarations only.
Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/video/fbdev/hyperv_fb.c

@@ -415,7 +415,8 @@ static int synthvid_negotiate_ver(struct hv_device *hdev, u32 ver)
 	struct fb_info *info = hv_get_drvdata(hdev);
 	struct hvfb_par *par = info->par;
 	struct synthvid_msg *msg = (struct synthvid_msg *)par->init_buf;
-	int t, ret = 0;
+	int ret = 0;
+	unsigned long t;
 
 	memset(msg, 0, sizeof(struct synthvid_msg));
 	msg->vid_hdr.type = SYNTHVID_VERSION_REQUEST;
@@ -488,7 +489,8 @@ static int synthvid_send_config(struct hv_device *hdev)
 	struct fb_info *info = hv_get_drvdata(hdev);
 	struct hvfb_par *par = info->par;
 	struct synthvid_msg *msg = (struct synthvid_msg *)par->init_buf;
-	int t, ret = 0;
+	int ret = 0;
+	unsigned long t;
 
 	/* Send VRAM location */
 	memset(msg, 0, sizeof(struct synthvid_msg));