linux-kernel - [V1] rtc:rtc-vr41xx :- Retunr error is not correct in rtc

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Date:   Sun, 11 Dec 2016 22:11:24 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     a.zummo@...ertech.it, alexandre.belloni@...e-electrons.com
Cc:     rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org
Subject: [V1] rtc:rtc-vr41xx :- Retunr error is not correct in rtc_probe

Here, rtc_probe is returning EBUSY at any error case.
It should return ENOMEM insted of EBUSY.

-EBUSY A resource you need is not avaialable.

-ENOMEM This is used to signify lack of memory resources.

-ENODEV This is used when no device is available.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/rtc/rtc-vr41xx.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c
index e1b86bb..e666d8e 100644
--- a/drivers/rtc/rtc-vr41xx.c
+++ b/drivers/rtc/rtc-vr41xx.c
@@ -292,21 +292,21 @@ static int rtc_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res)
-		return -EBUSY;
+		return -ENOMEM;
 
 	rtc1_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
 	if (!rtc1_base)
-		return -EBUSY;
+		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 	if (!res) {
-		retval = -EBUSY;
+		retval = -ENOMEM;
 		goto err_rtc1_iounmap;
 	}
 
 	rtc2_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
 	if (!rtc2_base) {
-		retval = -EBUSY;
+		retval = -ENOMEM;
 		goto err_rtc1_iounmap;
 	}
 
@@ -342,7 +342,7 @@ static int rtc_probe(struct platform_device *pdev)
 
 	pie_irq = platform_get_irq(pdev, 1);
 	if (pie_irq <= 0) {
-		retval = -EBUSY;
+		retval = -ENODEV;
 		goto err_iounmap_all;
 	}
 
-- 
2.7.4