irqchip/mips-gic: Check the return value of ioremap() in gic_of_init()

The function ioremap() in gic_of_init() can fail, so
its return value should be checked.

Reported-by: Hacash Robot <hacashRobot@santino.com>
Signed-off-by: William Dean <williamsukatube@163.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220723100128.2964304-1-williamsukatube@163.com
This commit is contained in:
William Dean 2022-07-23 18:01:28 +08:00 committed by Marc Zyngier
parent c904cda044
commit 71349cc85e

View File

@ -734,6 +734,10 @@ static int __init gic_of_init(struct device_node *node,
}
mips_gic_base = ioremap(gic_base, gic_len);
if (!mips_gic_base) {
pr_err("Failed to ioremap gic_base\n");
return -ENOMEM;
}
gicconfig = read_gic_config();
gic_shared_intrs = FIELD_GET(GIC_CONFIG_NUMINTERRUPTS, gicconfig);