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irqchip/loongson-htvec: Fix potential resource leak

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In the function htvec_of_init(), system resource "parent_irq"
was not released in an error case. Thus add a jump target for
the completion of the desired exception handling.

Fixes: 818e915fba ("irqchip: Add Loongson HyperTransport Vector support")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1594087972-21715-4-git-send-email-yangtiezhu@loongson.cn
This commit is contained in:
Tiezhu Yang 2020-07-07 10:12:47 +08:00 committed by Marc Zyngier
parent 85efd6059a
commit 652d54e77a
1 changed files with 4 additions and 1 deletions
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5
drivers/irqchip/irq-loongson-htvec.c
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@ -192,7 +192,7 @@ static int htvec_of_init(struct device_node *node,
if (!priv->htvec_domain) {
pr_err("Failed to create IRQ domain\n");
err = -ENOMEM;
goto iounmap_base;
goto irq_dispose;
}
htvec_reset(priv);
@ -203,6 +203,9 @@ static int htvec_of_init(struct device_node *node,
return 0;
irq_dispose:
for (; i > 0; i--)
irq_dispose_mapping(parent_irq[i - 1]);
iounmap_base:
iounmap(priv->base);
free_priv: