[PATCH] fbcon: Avoid illegal display panning
Avoid calls to fb_pan_display when driver is suspended or not in text mode.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index bd4500a..8068d2f 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -2146,8 +2146,12 @@
scrollback_max = 0;
scrollback_current = 0;
- ops->var.xoffset = ops->var.yoffset = p->yscroll = 0;
- ops->update_start(info);
+
+ if (!fbcon_is_inactive(vc, info)) {
+ ops->var.xoffset = ops->var.yoffset = p->yscroll = 0;
+ ops->update_start(info);
+ }
+
fbcon_set_palette(vc, color_table);
fbcon_clear_margins(vc, 0);
@@ -2746,8 +2750,12 @@
updatescrollmode(p, info, vc);
scrollback_max = 0;
scrollback_current = 0;
- ops->var.xoffset = ops->var.yoffset = p->yscroll = 0;
- ops->update_start(info);
+
+ if (!fbcon_is_inactive(vc, info)) {
+ ops->var.xoffset = ops->var.yoffset = p->yscroll = 0;
+ ops->update_start(info);
+ }
+
fbcon_set_palette(vc, color_table);
update_screen(vc);
if (softback_buf)
@@ -2784,8 +2792,13 @@
updatescrollmode(p, info, vc);
scrollback_max = 0;
scrollback_current = 0;
- ops->var.xoffset = ops->var.yoffset = p->yscroll = 0;
- ops->update_start(info);
+
+ if (!fbcon_is_inactive(vc, info)) {
+ ops->var.xoffset = ops->var.yoffset =
+ p->yscroll = 0;
+ ops->update_start(info);
+ }
+
fbcon_set_palette(vc, color_table);
update_screen(vc);
if (softback_buf)