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

[Mika Kuoppala]

commit ae1287865f5361fa138d4d3b1b6277908b54eac9
Author: Dave Airlie <airlied at 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 at intel.com>
---
 drivers/video/console/fbcon.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 3cd6759..a92783e 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -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();
-- 
1.7.9.5