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KVM: arm64: vgic: Free gic_kvm_info on initialization failure

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vgic_set_kvm_info() allocates gic_kvm_info for use by
kvm_vgic_hyp_init(). When a maintenance interrupt is mandatory but not
provided, kvm_vgic_hyp_init() returns -ENXIO before reaching the
common cleanup path, leaking said allocation.

Route this error through that cleanup path so that gic_kvm_info is
freed and the global pointer is cleared.

Fixes: 0e5cb77706 ("irqchip/gic: Split vGIC probing information from the GIC code")
Link: https://sashiko.dev/#/patchset/20260724104819.1296803-1-sascha.bischoff@arm.com?part=1
Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com>
Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://patch.msgid.link/20260811150941.941295-2-sascha.bischoff@arm.com
Signed-off-by: Oliver Upton <oupton@kernel.org>
This commit is contained in:
Sascha Bischoff 2026-08-11 15:10:17 +00:00 committed by Oliver Upton
parent 028d8df0a1
commit d3a1b28ea2
1 changed files with 3 additions and 1 deletions
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4
arch/arm64/kvm/vgic/vgic-init.c
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@ -791,7 +791,8 @@ int kvm_vgic_hyp_init(void)
if (has_mask && !gic_kvm_info->maint_irq) {
kvm_err("No vgic maintenance irq\n");
return -ENXIO;
ret = -ENXIO;
goto out_free;
}
/*
@ -824,6 +825,7 @@ int kvm_vgic_hyp_init(void)
kvm_vgic_global_state.maint_irq = gic_kvm_info->maint_irq;
out_free:
kfree(gic_kvm_info);
gic_kvm_info = NULL;