fbcon: don't draw cursor when it's disabled

When the cursor and echo are disabled on the current console, pressing a
key will cause a black rectangle to be painted in the cursor's position.
Fix this by not touching the framebuffer in fbcon_cursor() when the
cursor is off.

Signed-off-by: Michal Januszewski <spock@gentoo.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index bd131d472e242eeae358effdad81e753057de86a..f1e3e3c00b210c777a4622eb20180410867303d0 100644 (file)
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -1310,7 +1310,7 @@ static void fbcon_cursor(struct vc_data *vc, int mode)
        int y;
        int c = scr_readw((u16 *) vc->vc_pos);
 
-       if (fbcon_is_inactive(vc, info))
+       if (fbcon_is_inactive(vc, info) || vc->vc_deccm != 1)
                return;
 
        ops->cursor_flash = (mode == CM_ERASE) ? 0 : 1;