[PATCH -next] irqchip/irq-qcom-mpm: fix return value check in qcom_mpm_init()

[Yang Yingliang]

If devm_platform_ioremap_resource() fails, it never returns
NULL, replace NULL check with IS_ERR().

Fixes: a6199bb514d8 ("irqchip: Add Qualcomm MPM controller driver")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
---
 drivers/irqchip/irq-qcom-mpm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-qcom-mpm.c b/drivers/irqchip/irq-qcom-mpm.c
index eea5a753618c..d30614661eea 100644
--- a/drivers/irqchip/irq-qcom-mpm.c
+++ b/drivers/irqchip/irq-qcom-mpm.c
@@ -375,7 +375,7 @@ static int qcom_mpm_init(struct device_node *np, struct device_node *parent)
 	raw_spin_lock_init(&priv->lock);
 
 	priv->base = devm_platform_ioremap_resource(pdev, 0);
-	if (!priv->base)
+	if (IS_ERR(priv->base))
 		return PTR_ERR(priv->base);
 
 	for (i = 0; i < priv->reg_stride; i++) {
-- 
2.25.1