From: William Dean williamsukatube@163.com
[ Upstream commit 71349cc85e5930dce78ed87084dee098eba24b59 ]
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 --- drivers/irqchip/irq-mips-gic.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c index 8b08b31ea2ba..8ada91bdbe4d 100644 --- a/drivers/irqchip/irq-mips-gic.c +++ b/drivers/irqchip/irq-mips-gic.c @@ -766,6 +766,10 @@ 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 = gicconfig & GIC_CONFIG_NUMINTERRUPTS;