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From: Yang Yingliang <yangyingliang@huawei.com>
To: <linux-kernel@vger.kernel.org>
Cc: <maz@kernel.org>, <shawn.guo@linaro.org>
Subject: [PATCH -next] irqchip/irq-qcom-mpm: fix return value check in qcom_mpm_init()
Date: Wed, 16 Mar 2022 10:51:00 +0800	[thread overview]
Message-ID: <20220316025100.1758413-1-yangyingliang@huawei.com> (raw)

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@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
 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


             reply	other threads:[~2022-03-16  2:41 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-16  2:51 Yang Yingliang [this message]
2022-03-16  2:48 ` Shawn Guo
2022-03-17 15:33 ` [irqchip: irq/irqchip-next] " irqchip-bot for Yang Yingliang
2022-04-05 15:40 ` [irqchip: irq/irqchip-fixes] " irqchip-bot for Yang Yingliang

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