mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-03 23:58:05 +00:00
Code Issues Releases Wiki Activity

irqchip/gic: Don't initialise chip if mapping IO space fails

Browse source 
If we fail to map the address space for the GIC distributor or CPU
interface, then don't attempt to initialise the chip, just WARN and
return.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Jon Hunter 2016-05-10 16:14:40 +01:00 committed by Marc Zyngier
parent 992345a58e
commit 26acfe7463
1 changed files with 6 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/irqchip/irq-gic.c
View file

@ -1209,10 +1209,14 @@ gic_of_init(struct device_node *node, struct device_node *parent)
return -ENODEV;
dist_base = of_iomap(node, 0);
WARN(!dist_base, "unable to map gic dist registers\n");
if (WARN(!dist_base, "unable to map gic dist registers\n"))
return -ENOMEM;
cpu_base = of_iomap(node, 1);
WARN(!cpu_base, "unable to map gic cpu registers\n");
if (WARN(!cpu_base, "unable to map gic cpu registers\n")) {
iounmap(dist_base);
return -ENOMEM;
}
/*
* Disable split EOI/Deactivate if either HYP is not available