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From: Tiezhu Yang <yangtiezhu@loongson.cn>
To: Alessandro Zummo <a.zummo@towertech.it>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-rtc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Xuefeng Li <lixuefeng@loongson.cn>,
	Tiezhu Yang <yangtiezhu@loongson.cn>
Subject: [PATCH 2/2] rtc: mpc5121: Fix return value of mpc5121_rtc_probe()
Date: Sat, 23 May 2020 17:56:22 +0800
Message-ID: <1590227782-32249-2-git-send-email-yangtiezhu@loongson.cn> (raw)
In-Reply-To: <1590227782-32249-1-git-send-email-yangtiezhu@loongson.cn>

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

Fixes: d53d4ae981d0 ("rtc: mpc5121: simplify probe")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
 drivers/rtc/rtc-mpc5121.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-mpc5121.c b/drivers/rtc/rtc-mpc5121.c
index 3040844..5c2ce71 100644
--- a/drivers/rtc/rtc-mpc5121.c
+++ b/drivers/rtc/rtc-mpc5121.c
@@ -316,7 +316,7 @@ static int mpc5121_rtc_probe(struct platform_device *op)
 	rtc->regs = devm_platform_ioremap_resource(op, 0);
 	if (IS_ERR(rtc->regs)) {
 		dev_err(&op->dev, "%s: couldn't map io space\n", __func__);
-		return -ENOSYS;
+		return PTR_ERR(rtc->regs);
 	}
 
 	device_init_wakeup(&op->dev, 1);
-- 
2.1.0


  reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-23  9:56 [PATCH 1/2] rtc: goldfish: Fix return value of goldfish_rtc_probe() Tiezhu Yang
2020-05-23  9:56 ` Tiezhu Yang [this message]
2020-05-23 19:51   ` [PATCH 2/2] rtc: mpc5121: Fix return value of mpc5121_rtc_probe() Alexandre Belloni
2020-05-23 19:50 ` [PATCH 1/2] rtc: goldfish: Fix return value of goldfish_rtc_probe() Alexandre Belloni
2020-05-25  1:27   ` Tiezhu Yang

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