From 6070f9ec6b03cc46cd0242523326f7a296f47c1c Mon Sep 17 00:00:00 2001 From: Andreas Deresch Date: Sun, 26 Feb 2006 04:18:34 +0100 Subject: [PATCH] i386: Handle non existing APICs without panicing [description from AK] This fixes booting in APIC mode on some ACER laptops. x86-64 did a similar change some time ago. See http://bugzilla.kernel.org/show_bug.cgi?id=4700 for details Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/i386/kernel/io_apic.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'arch/i386/kernel/io_apic.c') diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c index f2dd218d88cb..235822b3f41b 100644 --- a/arch/i386/kernel/io_apic.c +++ b/arch/i386/kernel/io_apic.c @@ -2566,8 +2566,10 @@ int __init io_apic_get_unique_id (int ioapic, int apic_id) spin_unlock_irqrestore(&ioapic_lock, flags); /* Sanity check */ - if (reg_00.bits.ID != apic_id) - panic("IOAPIC[%d]: Unable change apic_id!\n", ioapic); + if (reg_00.bits.ID != apic_id) { + printk("IOAPIC[%d]: Unable to change apic_id!\n", ioapic); + return -1; + } } apic_printk(APIC_VERBOSE, KERN_INFO -- cgit v1.2.3-55-g7522