From aa6f5ffbdba45aa8e19e5048648fc6c7b25376d3 Mon Sep 17 00:00:00 2001 From: merge Date: Thu, 22 Jan 2009 13:55:32 +0000 Subject: MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage: From: merge MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage: From: merge MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage: From: Andy Green fix-stray-endmenu.patch Signed-off-by: Andy Green --- virt/kvm/irq_comm.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) (limited to 'virt/kvm/irq_comm.c') diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c index 55ad76ee2d0..aa5d1e5c497 100644 --- a/virt/kvm/irq_comm.c +++ b/virt/kvm/irq_comm.c @@ -61,10 +61,9 @@ void kvm_register_irq_ack_notifier(struct kvm *kvm, hlist_add_head(&kian->link, &kvm->arch.irq_ack_notifier_list); } -void kvm_unregister_irq_ack_notifier(struct kvm *kvm, - struct kvm_irq_ack_notifier *kian) +void kvm_unregister_irq_ack_notifier(struct kvm_irq_ack_notifier *kian) { - hlist_del(&kian->link); + hlist_del_init(&kian->link); } /* The caller must hold kvm->lock mutex */ @@ -73,11 +72,15 @@ int kvm_request_irq_source_id(struct kvm *kvm) unsigned long *bitmap = &kvm->arch.irq_sources_bitmap; int irq_source_id = find_first_zero_bit(bitmap, sizeof(kvm->arch.irq_sources_bitmap)); + if (irq_source_id >= sizeof(kvm->arch.irq_sources_bitmap)) { printk(KERN_WARNING "kvm: exhaust allocatable IRQ sources!\n"); - irq_source_id = -EFAULT; - } else - set_bit(irq_source_id, bitmap); + return -EFAULT; + } + + ASSERT(irq_source_id != KVM_USERSPACE_IRQ_SOURCE_ID); + set_bit(irq_source_id, bitmap); + return irq_source_id; } @@ -85,7 +88,9 @@ void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id) { int i; - if (irq_source_id <= 0 || + ASSERT(irq_source_id != KVM_USERSPACE_IRQ_SOURCE_ID); + + if (irq_source_id < 0 || irq_source_id >= sizeof(kvm->arch.irq_sources_bitmap)) { printk(KERN_ERR "kvm: IRQ source ID out of range!\n"); return; -- cgit v1.2.3