tree ea15f9d3f3a800d5ff938e645cc046a67ebc4ad3
parent e0426e6a09954d205da2d674a3d368d2715e3afd
author Stefano Stabellini <stefano.stabellini@eu.citrix.com> 1216873799 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1216921650 -0700

vt: do not update when the console is blanked

vt.c DO_UPDATE macro checks if the console is visible but doesn't check if
the console is blanked.

In fact updating fbcon while the console is blanked is not only
unnecessary but can even cause screen corruption.

Therefore I am adding a simple check on console_blanked in DO_UPDATE.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
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>