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-rw-r--r--drivers/video/console/fbcon.c27
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 4e39291ac8b4..f447734b09b4 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -759,7 +759,7 @@ static int con2fb_release_oldinfo(struct vc_data *vc, struct fb_info *oldinfo,
newinfo in an undefined state. Thus, a call to
fb_set_par() may be needed for the newinfo.
*/
- if (newinfo->fbops->fb_set_par) {
+ if (newinfo && newinfo->fbops->fb_set_par) {
ret = newinfo->fbops->fb_set_par(newinfo);
if (ret)
@@ -3028,8 +3028,31 @@ static int fbcon_fb_unbind(int idx)
if (con2fb_map[i] == idx)
set_con2fb_map(i, new_idx, 0);
}
- } else
+ } else {
+ struct fb_info *info = registered_fb[idx];
+
+ /* This is sort of like set_con2fb_map, except it maps
+ * the consoles to no device and then releases the
+ * oldinfo to free memory and cancel the cursor blink
+ * timer. I can imagine this just becoming part of
+ * set_con2fb_map where new_idx is -1
+ */
+ for (i = first_fb_vc; i <= last_fb_vc; i++) {
+ if (con2fb_map[i] == idx) {
+ con2fb_map[i] = -1;
+ if (!search_fb_in_map(idx)) {
+ ret = con2fb_release_oldinfo(vc_cons[i].d,
+ info, NULL, i,
+ idx, 0);
+ if (ret) {
+ con2fb_map[i] = idx;
+ return ret;
+ }
+ }
+ }
+ }
ret = fbcon_unbind();
+ }
return ret;
}