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powerpc/xive: Fix IPI reset

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When resetting an IPI, hw_ipi should also be set to zero.

Fixes: eac1e731b5 ("powerpc/xive: guest exploitation of the XIVE interrupt controller")
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Cédric Le Goater 2017-10-04 11:15:04 +02:00 committed by Michael Ellerman
parent 070e004912
commit 74f1282114
1 changed files with 4 additions and 0 deletions
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4
arch/powerpc/sysdev/xive/spapr.c
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@ -431,7 +431,11 @@ static int xive_spapr_get_ipi(unsigned int cpu, struct xive_cpu *xc)
static void xive_spapr_put_ipi(unsigned int cpu, struct xive_cpu *xc)
{
if (!xc->hw_ipi)
return;
xive_irq_bitmap_free(xc->hw_ipi);
xc->hw_ipi = 0;
}
#endif /* CONFIG_SMP */