[PATCH 4.9 043/148] KVM: arm/arm64: vgic-irqfd: Fix MSI entry allocation

Greg Kroah-Hartman
2017-12-12T12:56:45Z

From: Marc Zyngier <marc.zyngier@arm.com>

commit 150009e2c70cc3c6e97f00e7595055765d32fb85 upstream.

Using the size of the structure we're allocating is a good idea
and avoids any surprise... In this case, we're happilly confusing
kvm_kernel_irq_routing_entry and kvm_irq_routing_entry...

Fixes: 95b110ab9a09 ("KVM: arm/arm64: Enable irqchip routing")
Reported-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
virt/kvm/arm/vgic/vgic-irqfd.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

--- a/virt/kvm/arm/vgic/vgic-irqfd.c
+++ b/virt/kvm/arm/vgic/vgic-irqfd.c
@@ -112,8 +112,7 @@ int kvm_vgic_setup_default_irq_routing(s
u32 nr = dist->nr_spis;
int i, ret;

- entries = kcalloc(nr, sizeof(struct kvm_kernel_irq_routing_entry),
- GFP_KERNEL);
+ entries = kcalloc(nr, sizeof(*entries), GFP_KERNEL);
if (!entries)
return -ENOMEM;