irqchip/mips-gic: Check the return value of ioremap() in gic_of_init()
[ Upstream commit 71349cc85e
]
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
Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -783,6 +783,10 @@ static int __init gic_of_init(struct device_node *node,
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}
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mips_gic_base = ioremap(gic_base, gic_len);
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if (!mips_gic_base) {
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pr_err("Failed to ioremap gic_base\n");
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return -ENOMEM;
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}
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gicconfig = read_gic_config();
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gic_shared_intrs = FIELD_GET(GIC_CONFIG_NUMINTERRUPTS, gicconfig);
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