3 files changed, 19 insertions, 2 deletions

diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index ad936295d8f..7a41220aebd 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1651,6 +1651,7 @@ static int do_unregister_framebuffer(struct fb_info *fb_info)
         if (ret)
                 return -EINVAL;
 
+        unlink_framebuffer(fb_info);
         if (fb_info->pixmap.addr &&
             (fb_info->pixmap.flags & FB_PIXMAP_DEFAULT))
                 kfree(fb_info->pixmap.addr);
@@ -1658,7 +1659,6 @@ static int do_unregister_framebuffer(struct fb_info *fb_info)
         registered_fb[i] = NULL;
         num_registered_fb--;
         fb_cleanup_device(fb_info);
-        device_destroy(fb_class, MKDEV(FB_MAJOR, i));
         event.info = fb_info;
         fb_notifier_call_chain(FB_EVENT_FB_UNREGISTERED, &event);
 
@@ -1667,6 +1667,22 @@ static int do_unregister_framebuffer(struct fb_info *fb_info)
         return 0;
 }
 
+int unlink_framebuffer(struct fb_info *fb_info)
+{
+        int i;
+
+        i = fb_info->node;
+        if (i < 0 || i >= FB_MAX || registered_fb[i] != fb_info)
+                return -EINVAL;
+
+        if (fb_info->dev) {
+                device_destroy(fb_class, MKDEV(FB_MAJOR, i));
+                fb_info->dev = NULL;
+        }
+        return 0;
+}
+EXPORT_SYMBOL(unlink_framebuffer);
+
 void remove_conflicting_framebuffers(struct apertures_struct *a,
                                      const char *name, bool primary)
 {
diff --git a/drivers/video/udlfb.c b/drivers/video/udlfb.c
index 816a4fda04f..415e9b2f43d 100644
--- a/drivers/video/udlfb.c
+++ b/drivers/video/udlfb.c
@@ -1666,7 +1666,7 @@ static void dlfb_usb_disconnect(struct usb_interface *interface)
         for (i = 0; i < ARRAY_SIZE(fb_device_attrs); i++)
                 device_remove_file(info->dev, &fb_device_attrs[i]);
         device_remove_bin_file(info->dev, &edid_attr);
-
+        unlink_framebuffer(info);
         usb_set_intfdata(interface, NULL);
 
         /* if clients still have us open, will be freed on last close */
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 6a827487717..f9d013d09bc 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -997,6 +997,7 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 /* drivers/video/fbmem.c */
 extern int register_framebuffer(struct fb_info *fb_info);
 extern int unregister_framebuffer(struct fb_info *fb_info);
+extern int unlink_framebuffer(struct fb_info *fb_info);
 extern void remove_conflicting_framebuffers(struct apertures_struct *a,
                                 const char *name, bool primary);
 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);