1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index e111a88612f7..5ff51cd0a2a9 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -630,6 +630,15 @@ static int con2fb_release_oldinfo(struct vc_data *vc, struct fb_info *oldinfo,
                 kfree(oldinfo->fbcon_par);
                 oldinfo->fbcon_par = NULL;
                 module_put(oldinfo->fbops->owner);
+                /*
+                  If oldinfo and newinfo are driving the same hardware,
+                  the fb_release() method of oldinfo may attempt to
+                  restore the hardware state.  This will leave the
+                  newinfo in an undefined state. Thus, a call to
+                  fb_set_par() may be needed for the newinfo.
+                */
+                if (newinfo->fbops->fb_set_par)
+                        newinfo->fbops->fb_set_par(newinfo);
         }
 
         return err;