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xen/hvc: allow xenboot console to be used again

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Commit d0380e6c3c0f6edb986d8798a23acfaf33d5df23 (early_printk:
consolidate random copies of identical code) added in 3.10 introduced
a check for con->index == -1 in early_console_register().

Initialize index to -1 for the xenboot console so earlyprintk=xen
works again.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Vrabel 2013-10-01 19:00:49 +01:00 committed by Greg Kroah-Hartman
parent f8747d4a46
commit a9fbf4d591
1 changed files with 1 additions and 0 deletions
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drivers/tty/hvc/hvc_xen.c
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@ -636,6 +636,7 @@ struct console xenboot_console = {
.name = "xenboot",
.write = xenboot_write_console,
.flags = CON_PRINTBUFFER | CON_BOOT | CON_ANYTIME,
.index = -1,
};
#endif /* CONFIG_EARLY_PRINTK */