Patch "KVM: arm/arm64: vgic: vgic_init returns -ENODEV when no online vcpu" has been added to the 3.19-stable tree

Patch "KVM: arm/arm64: vgic: vgic_init returns -ENODEV when no online vcpu" has been added to the 3.19-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    KVM: arm/arm64: vgic: vgic_init returns -ENODEV when no online vcpu

to the 3.19-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     kvm-arm-arm64-vgic-vgic_init-returns-enodev-when-no-online-vcpu.patch
and it can be found in the queue-3.19 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 66b030e48af68fd4c22d343908bc057207a0a31e Mon Sep 17 00:00:00 2001
From: Eric Auger <eric.auger@linaro.org>
Date: Mon, 15 Dec 2014 18:43:32 +0100
Subject: KVM: arm/arm64: vgic: vgic_init returns -ENODEV when no online vcpu

From: Eric Auger <eric.auger@linaro.org>

commit 66b030e48af68fd4c22d343908bc057207a0a31e upstream.

To be more explicit on vgic initialization failure, -ENODEV is
returned by vgic_init when no online vcpus can be found at init.

Signed-off-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 virt/kvm/arm/vgic.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -1812,7 +1812,7 @@ static int vgic_init(struct kvm *kvm)
 
 	nr_cpus = dist->nr_cpus = atomic_read(&kvm->online_vcpus);
 	if (!nr_cpus)		/* No vcpus? Can't be good... */
-		return -EINVAL;
+		return -ENODEV;
 
 	/*
 	 * If nobody configured the number of interrupts, use the


Patches currently in stable-queue which might be from eric.auger@linaro.org are

queue-3.19/kvm-arm-arm64-vgic-vgic_init-returns-enodev-when-no-online-vcpu.patch