From: Paul Cercueil paul@crapouillou.net
[ Upstream commit 52ecc87642f273a599c9913b29fd179c13de457b ]
If we cannot create the IRQ domain, the driver should fail to probe instead of succeeding with just a warning message.
Signed-off-by: Paul Cercueil paul@crapouillou.net Signed-off-by: Marc Zyngier maz@kernel.org Link: https://lore.kernel.org/r/1570015525-27018-3-git-send-email-zhouyanjie@zoho.... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/irqchip/irq-ingenic.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/irqchip/irq-ingenic.c b/drivers/irqchip/irq-ingenic.c index fc5953dea509..b2e16dca76a6 100644 --- a/drivers/irqchip/irq-ingenic.c +++ b/drivers/irqchip/irq-ingenic.c @@ -117,6 +117,14 @@ static int __init ingenic_intc_of_init(struct device_node *node, goto out_unmap_irq; }
+ domain = irq_domain_add_legacy(node, num_chips * 32, + JZ4740_IRQ_BASE, 0, + &irq_domain_simple_ops, NULL); + if (!domain) { + err = -ENOMEM; + goto out_unmap_base; + } + for (i = 0; i < num_chips; i++) { /* Mask all irqs */ writel(0xffffffff, intc->base + (i * CHIP_SIZE) + @@ -143,14 +151,11 @@ static int __init ingenic_intc_of_init(struct device_node *node, IRQ_NOPROBE | IRQ_LEVEL); }
- domain = irq_domain_add_legacy(node, num_chips * 32, JZ4740_IRQ_BASE, 0, - &irq_domain_simple_ops, NULL); - if (!domain) - pr_warn("unable to register IRQ domain\n"); - setup_irq(parent_irq, &intc_cascade_action); return 0;
+out_unmap_base: + iounmap(intc->base); out_unmap_irq: irq_dispose_mapping(parent_irq); out_free: