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fbcon: when font is freed, clear also vc_font.data

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commit e6637d5427 upstream.

commit ae1287865f
Author: Dave Airlie <airlied@redhat.com>
Date:   Thu Jan 24 16:12:41 2013 +1000

    fbcon: don't lose the console font across generic->chip driver switch

uses a pointer in vc->vc_font.data to load font into the new driver.
However if the font is actually freed, we need to clear the data
so that we don't reload font from dangling pointer.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=892340
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mika Kuoppala 2013-04-22 14:19:26 +03:00 committed by Greg Kroah-Hartman
parent ce5b62fd94
commit a393520aa6
1 changed files with 2 additions and 0 deletions
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2
drivers/video/console/fbcon.c
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@ -1228,6 +1228,8 @@ static void fbcon_deinit(struct vc_data *vc)
finished:
fbcon_free_font(p, free_font);
if (free_font)
vc->vc_font.data = NULL;
if (!con_is_bound(&fb_con))
fbcon_exit();