linux-kernel - [PATCH] NFC: nfcmrvl: fix error check return value of irq_of_parse_and

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Date:   Fri, 22 Apr 2022 08:46:05 +0000
From:   cgel.zte@...il.com
To:     krzysztof.kozlowski@...aro.org, davem@...emloft.net
Cc:     kuba@...nel.org, lv.ruyi@....com.cn, yashsri421@...il.com,
        sameo@...ux.intel.com, cuissard@...vell.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH] NFC: nfcmrvl: fix error check return value of irq_of_parse_and_map()

From: Lv Ruyi <lv.ruyi@....com.cn>

The irq_of_parse_and_map() function returns 0 on failure, and does not
return an negative value.

Fixes: 	b5b3e23e4cac ("NFC: nfcmrvl: add i2c driver")
Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@....com.cn>
---
 drivers/nfc/nfcmrvl/i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nfc/nfcmrvl/i2c.c b/drivers/nfc/nfcmrvl/i2c.c
index ceef81d93ac9..7dcc97707363 100644
--- a/drivers/nfc/nfcmrvl/i2c.c
+++ b/drivers/nfc/nfcmrvl/i2c.c
@@ -167,7 +167,7 @@ static int nfcmrvl_i2c_parse_dt(struct device_node *node,
 		pdata->irq_polarity = IRQF_TRIGGER_RISING;
 
 	ret = irq_of_parse_and_map(node, 0);
-	if (ret < 0) {
+	if (!ret) {
 		pr_err("Unable to get irq, error: %d\n", ret);
 		return ret;
 	}
-- 
2.25.1