This reverts commit 361162459f.
It causes an infinite loop when booting Linux under Xen, as so:
[ 2.382984] console [hvc0] enabled
[ 2.382984] console [hvc0] enabled
[ 2.382984] console [hvc0] enabled
...
as reported by Konrad Rzeszutek Wilk. And Rusty reports the same for
lguest. He goes on to say:
"This is not a concurrency problem: the issue seems to be that
calling register_console() twice on the same struct console is a bad
idea."
and Greg says he'll fix it up properly at some point later. Revert for now.
Reported-by: Konrad Rzeszutek Wilk <[email protected]>
Reported-by: Rusty Russell <[email protected]>
Requested-by: Stephen Rothwell <[email protected]>
Cc: Miche Baker-Harvey <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
31555213f0