From 4e1567d3aad9bae0ecc5bb047179cd026bfb035c Mon Sep 17 00:00:00 2001 From: "Antonino A. Daplas" Date: Mon, 12 Dec 2005 22:17:18 -0800 Subject: [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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/console/fbcon.c | 25 +++++++++++++++++++------ 1 file changed, 19 insertions(+), 6 deletions(-) (limited to 'drivers/video') diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index bd4500a8992e..8068d2f7efe6 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -2146,8 +2146,12 @@ static int fbcon_switch(struct vc_data *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); fbcon_clear_margins(vc, 0); @@ -2746,8 +2750,12 @@ static void fbcon_modechanged(struct fb_info *info) 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 @@ static void fbcon_set_all_vcs(struct fb_info *info) 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) -- cgit v1.2.2