fb-defio: Inhibit VM_IO flag to be set on vmalloc-ed framebuffers.

The framebuffers (screenbase) these drivers present are actually
vmalloc-ed pages. There is no need for them to have the VM_IO flag set.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Jaya Kumar <jayakumar.lkml@gmail.com>

drivers/video/broadsheetfb.c

@@ -470,7 +470,7 @@ static int __devinit broadsheetfb_probe(struct platform_device *dev)
 	par->read_reg = broadsheet_read_reg;
 	init_waitqueue_head(&par->waitq);
 
-	info->flags = FBINFO_FLAG_DEFAULT;
+	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
 
 	info->fbdefio = &broadsheetfb_defio;
 	fb_deferred_io_init(info);

drivers/video/hecubafb.c

@@ -253,7 +253,7 @@ static int __devinit hecubafb_probe(struct platform_device *dev)
 	par->send_command = apollo_send_command;
 	par->send_data = apollo_send_data;
 
-	info->flags = FBINFO_FLAG_DEFAULT;
+	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
 
 	info->fbdefio = &hecubafb_defio;
 	fb_deferred_io_init(info);

drivers/video/metronomefb.c

@@ -700,7 +700,7 @@ static int __devinit metronomefb_probe(struct platform_device *dev)
 	if (retval < 0)
 		goto err_free_irq;
 
-	info->flags = FBINFO_FLAG_DEFAULT;
+	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
 
 	info->fbdefio = &metronomefb_defio;
 	fb_deferred_io_init(info);