powerpc/xive: Fix IPI reset

[uclinux-h8/linux.git] / arch / powerpc / sysdev / xive / spapr.c

diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c
index f24a70b..d9c4c93 100644 (file)
--- a/arch/powerpc/sysdev/xive/spapr.c
+++ b/arch/powerpc/sysdev/xive/spapr.c
@@ -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 */