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| author | Zenghui Yu <yuzenghui@huawei.com> | 2024-03-27 22:23:34 +0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-04-09 11:03:16 +0200 |
| commit | b327708798809328f21da8dc14cc8883d1e8a4b3 (patch) | |
| tree | 4b2ee7f4c915b4e488b5c86f85dc5e782243dc8a /drivers/irqchip | |
| parent | ff3669a71afa06208de58d6bea1cc49d5e3fcbd1 (diff) | |
| download | linux-b327708798809328f21da8dc14cc8883d1e8a4b3.tar.gz linux-b327708798809328f21da8dc14cc8883d1e8a4b3.tar.bz2 linux-b327708798809328f21da8dc14cc8883d1e8a4b3.zip | |
irqchip/loongson-pch-msi: Fix off-by-one on allocation error path
When pch_msi_parent_domain_alloc() returns an error, there is an off-by-one
in the number of interrupts to be freed.
Fix it by passing the number of successfully allocated interrupts, instead of the
relative index of the last allocated one.
Fixes: 632dcc2c75ef ("irqchip: Add Loongson PCH MSI controller")
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Link: https://lore.kernel.org/r/20240327142334.1098-1-yuzenghui@huawei.com
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-loongson-pch-msi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/irqchip/irq-loongson-pch-msi.c b/drivers/irqchip/irq-loongson-pch-msi.c index 6e1e1f011bb2..dd4d699170f4 100644 --- a/drivers/irqchip/irq-loongson-pch-msi.c +++ b/drivers/irqchip/irq-loongson-pch-msi.c @@ -136,7 +136,7 @@ static int pch_msi_middle_domain_alloc(struct irq_domain *domain, err_hwirq: pch_msi_free_hwirq(priv, hwirq, nr_irqs); - irq_domain_free_irqs_parent(domain, virq, i - 1); + irq_domain_free_irqs_parent(domain, virq, i); return err; } |