UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

irqchip/alpine-msi: Fix off-by-one in allocation error path 

[ Upstream commit ff3669a71afa06208de58d6bea1cc49d5e3fcbd1 ]

When alpine_msix_gic_domain_alloc() fails, 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: 3841245e84 ("irqchip/alpine-msi: Fix freeing of interrupts on allocation error path")
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240327142305.1048-1-yuzenghui@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Zenghui Yu 2024-03-27 22:23:05 +08:00 committed by Greg Kroah-Hartman
parent 1d4e1fa2f2
commit a9bbafa46c
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/irqchip/irq-alpine-msi.c
View File

@ -165,7 +165,7 @@ static int alpine_msix_middle_domain_alloc(struct irq_domain *domain,
return 0;
err_sgi:
irq_domain_free_irqs_parent(domain, virq, i - 1);
irq_domain_free_irqs_parent(domain, virq, i);
alpine_msix_free_sgi(priv, sgi, nr_irqs);
return err;
}