From: William Dean <williamsukatube@xxxxxxxxx>
The function ioremap() in gic_of_init() can fail, so
its return value should be checked.
Fixes: 4bdc0d676a643 ("remove ioremap_nocache and devm_ioremap_nocache")
Reported-by: Hacash Robot <hacashRobot@xxxxxxxxxxx>
Signed-off-by: William Dean <williamsukatube@xxxxxxxxx>
---
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 ff89b36267dd..a1f6d955794a 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -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);
--
2.25.1
