linux-kernel - [PATCH] watchdog: bcm_kona_wdt: Use correct return value for bcm_kona_wdt

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Date:   Mon, 25 May 2020 15:31:04 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>
Cc:     bcm-kernel-feedback-list@...adcom.com,
        linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org,
        Xuefeng Li <lixuefeng@...ngson.cn>,
        Tiezhu Yang <yangtiezhu@...ngson.cn>
Subject: [PATCH] watchdog: bcm_kona_wdt: Use correct return value for bcm_kona_wdt_probe()

When call function devm_platform_ioremap_resource(), we should use IS_ERR()
to check the return value and return PTR_ERR() if failed.

Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
---
 drivers/watchdog/bcm_kona_wdt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/bcm_kona_wdt.c b/drivers/watchdog/bcm_kona_wdt.c
index eb850a8..8237c4e 100644
--- a/drivers/watchdog/bcm_kona_wdt.c
+++ b/drivers/watchdog/bcm_kona_wdt.c
@@ -279,7 +279,7 @@ static int bcm_kona_wdt_probe(struct platform_device *pdev)
 
 	wdt->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(wdt->base))
-		return -ENODEV;
+		return PTR_ERR(wdt->base);
 
 	wdt->resolution = SECWDOG_DEFAULT_RESOLUTION;
 	ret = bcm_kona_wdt_set_resolution_reg(wdt);
-- 
2.1.0