diff options
| author | Paul Cercueil <paul@crapouillou.net> | 2019-10-02 19:25:22 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-04 19:17:22 +0100 |
| commit | 44d9a1428d87293149562d643758e793221611a5 (patch) | |
| tree | 70de73b65769290a0c544c8b94d1d1cc9ec4d587 | |
| parent | c14a155609ae66321c0280d24a9cccbf210f924a (diff) | |
| download | linux-stable-44d9a1428d87293149562d643758e793221611a5.tar.gz linux-stable-44d9a1428d87293149562d643758e793221611a5.tar.bz2 linux-stable-44d9a1428d87293149562d643758e793221611a5.zip | |
irqchip: ingenic: Error out if IRQ domain creation failed
[ 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.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/irqchip/irq-ingenic.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/irqchip/irq-ingenic.c b/drivers/irqchip/irq-ingenic.c index f126255b3260..dda512dfe2c1 100644 --- a/drivers/irqchip/irq-ingenic.c +++ b/drivers/irqchip/irq-ingenic.c @@ -108,6 +108,14 @@ 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) + @@ -134,14 +142,11 @@ 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: |