mirrors/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2025-11-04 10:40:15 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

irqchip/alpine-msi: Fix freeing of interrupts on allocation error path

Browse source 
The alpine-msi driver has an interesting allocation error handling,
where it frees the same interrupts repeatedly. Hilarity follows.

This code is probably never executed, but let's fix it nonetheless.

Fixes: e6b78f2c3e ("irqchip: Add the Alpine MSIX interrupt controller")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Antoine Tenart <atenart@kernel.org>
Cc: Tsahee Zidenberg <tsahee@annapurnalabs.com>
Cc: Antoine Tenart <atenart@kernel.org>
Link: https://lore.kernel.org/r/20201129135525.396671-1-maz@kernel.org
This commit is contained in:
Marc Zyngier 2020-11-29 13:55:25 +00:00
parent 9898a59358
commit 3841245e84
1 changed files with 1 additions and 2 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/irqchip/irq-alpine-msi.c
View file

@ -165,8 +165,7 @@ static int alpine_msix_middle_domain_alloc(struct irq_domain *domain,
return 0; return 0;
err_sgi: err_sgi:
while (--i >= 0) 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); alpine_msix_free_sgi(priv, sgi, nr_irqs);
return err; return err;
} }