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authorMika Kuoppala <mika.kuoppala@linux.intel.com>2013-04-22 14:19:26 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-07 19:57:23 -0700
commit02f1fef6377f64ae0ea5b542a39eddf1424b505d (patch)
treeafc65c9a06f31a0d8eb63504754d5228fc9c469e /drivers
parent5022cf90d4bb8bed51c8176ce57ac7ccf87ed3d4 (diff)
fbcon: when font is freed, clear also vc_font.data
commit e6637d5427d2af9f3f33b95447bfc5347e5ccd85 upstream. commit ae1287865f5361fa138d4d3b1b6277908b54eac9 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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/console/fbcon.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 7a36dffb957..6b4fb5cf153 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -1229,6 +1229,8 @@ 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();