[PATCH net-next] cirrus: cs89x0: fix the return value handle and remove redundant dev_warn() for platform_get_irq()

[Ruan Jinjie <ruanjinjie@huawei.com>]

There is no possible for platform_get_irq() to return 0
and the return value of platform_get_irq() is more sensible
to show the error reason.

And there is no need to call the dev_warn() function directly to print
a custom message when handling an error from platform_get_irq() function as
it is going to display an appropriate error message in case of a failure.

Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
---
 drivers/net/ethernet/cirrus/cs89x0.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c
index 7c51fd9fc9be..d323c5c23521 100644
--- a/drivers/net/ethernet/cirrus/cs89x0.c
+++ b/drivers/net/ethernet/cirrus/cs89x0.c
@@ -1854,9 +1854,8 @@ static int __init cs89x0_platform_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	dev->irq = platform_get_irq(pdev, 0);
-	if (dev->irq <= 0) {
-		dev_warn(&dev->dev, "interrupt resource missing\n");
-		err = -ENXIO;
+	if (dev->irq < 0) {
+		err = dev->irq;
 		goto free;
 	}
 
-- 
2.34.1