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irqchip/jcore-aic: Fix missing allocation of IRQ descriptors 

The initialization function for the J-Core AIC aic_irq_of_init() is
currently missing the call to irq_alloc_descs() which allocates and
initializes all the IRQ descriptors. Add missing function call and
return the error code from irq_alloc_descs() in case the allocation
fails.

Fixes: 981b58f66c ("irqchip/jcore-aic: Add J-Core AIC driver")
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Tested-by: Rob Landley <rob@landley.net>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230510163343.43090-1-glaubitz@physik.fu-berlin.de
This commit is contained in:
John Paul Adrian Glaubitz 2023-05-10 18:33:42 +02:00 committed by Marc Zyngier
parent 48f31e4964
commit 4848229494
1 changed files with 7 additions and 0 deletions
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7
drivers/irqchip/irq-jcore-aic.c
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@ -68,6 +68,7 @@ static int __init aic_irq_of_init(struct device_node *node,
unsigned min_irq = JCORE_AIC2_MIN_HWIRQ;
unsigned dom_sz = JCORE_AIC_MAX_HWIRQ+1;
struct irq_domain *domain;
int ret;
pr_info("Initializing J-Core AIC\n");
@ -100,6 +101,12 @@ static int __init aic_irq_of_init(struct device_node *node,
jcore_aic.irq_unmask = noop;
jcore_aic.name = "AIC";
ret = irq_alloc_descs(-1, min_irq, dom_sz - min_irq,
of_node_to_nid(node));
if (ret < 0)
return ret;
domain = irq_domain_add_legacy(node, dom_sz - min_irq, min_irq, min_irq,
&jcore_aic_irqdomain_ops,
&jcore_aic);