The patch titled arch/x86/kernel/apic/io_apic.c: fix NULL pointer for Xen guests has been removed from the -mm tree. Its filename was arch-x86-kernel-apic-io_apicc-fix-null-pointer-for-xen-guests.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: arch/x86/kernel/apic/io_apic.c: fix NULL pointer for Xen guests From: Prarit Bhargava <prarit@xxxxxxxxxx> Upstream PV guests fail to boot because of a NULL pointer. It is possible that xen guests have irq_desc->chip_data = NULL. Test for NULL chip_data pointer before attempting to complete an irq move. Signed-off-by: Prarit Bhargava <prarit@xxxxxxxxxx> Acked-by: Suresh Siddha <suresh.b.siddha@xxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxx> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: <stable@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/x86/kernel/apic/io_apic.c | 3 +++ 1 file changed, 3 insertions(+) diff -puN arch/x86/kernel/apic/io_apic.c~arch-x86-kernel-apic-io_apicc-fix-null-pointer-for-xen-guests arch/x86/kernel/apic/io_apic.c --- a/arch/x86/kernel/apic/io_apic.c~arch-x86-kernel-apic-io_apicc-fix-null-pointer-for-xen-guests +++ a/arch/x86/kernel/apic/io_apic.c @@ -2545,6 +2545,9 @@ void irq_force_complete_move(int irq) struct irq_desc *desc = irq_to_desc(irq); struct irq_cfg *cfg = desc->chip_data; + if (!cfg) + return; + __irq_complete_move(&desc, cfg->vector); } #else _ Patches currently in -mm which might be from prarit@xxxxxxxxxx are origin.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html