From 756975bbfd185169aac19f227d65a8d738a5f5f8 Mon Sep 17 00:00:00 2001 From: Sheng Yang Date: Mon, 6 Jul 2009 11:05:39 +0800 Subject: [PATCH] KVM: Fix apic_mmio_write return for unaligned write Some in-famous OS do unaligned writing for APIC MMIO, and the return value has been missed in recent change, then the OS hangs. Signed-off-by: Sheng Yang Signed-off-by: Avi Kivity --- arch/x86/kvm/lapic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 683345a121b..6c846030854 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -834,7 +834,7 @@ static int apic_mmio_write(struct kvm_io_device *this, if (len != 4 || (offset & 0xf)) { /* Don't shout loud, $infamous_os would cause only noise. */ apic_debug("apic write: bad size=%d %lx\n", len, (long)address); - return; + return 0; } val = *(u32*)data; -- 2.20.1