diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c index dadd1f46ec93..86c78af1f68e 100644 --- a/arch/powerpc/sysdev/xive/common.c +++ b/arch/powerpc/sysdev/xive/common.c @@ -74,6 +74,8 @@ static struct xive_ipi_desc { */ static unsigned int xive_ipi_cpu_to_irq(unsigned int cpu) { + if (!xive_ipis) + return XIVE_BAD_IRQ; return xive_ipis[early_cpu_to_node(cpu)].irq; } #endif @@ -1132,8 +1134,7 @@ static int __init xive_init_ipis(void) if (!ipi_domain) goto out_free_fwnode; - xive_ipis = kzalloc_objs(*xive_ipis, nr_node_ids, - GFP_KERNEL | __GFP_NOFAIL); + xive_ipis = kzalloc_objs(*xive_ipis, nr_node_ids, GFP_KERNEL); if (!xive_ipis) goto out_free_domain; @@ -1158,6 +1159,7 @@ static int __init xive_init_ipis(void) out_free_xive_ipis: kfree(xive_ipis); + xive_ipis = NULL; out_free_domain: irq_domain_remove(ipi_domain); out_free_fwnode: @@ -1190,6 +1192,9 @@ static int xive_setup_cpu_ipi(unsigned int cpu) pr_debug("Setting up IPI for CPU %d\n", cpu); + if (xive_ipi_irq == XIVE_BAD_IRQ) + return -EIO; + xc = per_cpu(xive_cpu, cpu); /* Check if we are already setup */ @@ -1234,6 +1239,9 @@ noinstr static void xive_cleanup_cpu_ipi(unsigned int cpu, struct xive_cpu *xc) /* Disable the IPI and free the IRQ data */ + if (xive_ipi_irq == XIVE_BAD_IRQ) + return; + /* Already cleaned up ? */ if (xc->hw_ipi == XIVE_BAD_IRQ) return;