[PATCH] drivers: net: smc911x: Fix wrong check for irq

Subsystems: networking drivers, the rest

STALE1745d

3 messages, 3 authors, 2021-12-25 · open the first message on its own page

[PATCH] drivers: net: smc911x: Fix wrong check for irq

From: Jiasheng Jiang <hidden>
Date: 2021-12-24 05:13:36

Because ndev->irq is unsigned, the check is useless.
Therefore, we need to correct the check by using error variable.

Fixes: cb93b3e11d40 ("drivers: net: smc911x: Check for error irq")
Signed-off-by: Jiasheng Jiang <redacted>
---
 drivers/net/ethernet/smsc/smc911x.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c
index dd6f69ced4ee..3118c8b7a8c3 100644
--- a/drivers/net/ethernet/smsc/smc911x.c
+++ b/drivers/net/ethernet/smsc/smc911x.c
@@ -2071,11 +2071,11 @@ static int smc911x_drv_probe(struct platform_device *pdev)
 	SET_NETDEV_DEV(ndev, &pdev->dev);
 
 	ndev->dma = (unsigned char)-1;
-	ndev->irq = platform_get_irq(pdev, 0);
-	if (ndev->irq < 0) {
-		ret = ndev->irq;
+
+	ret = platform_get_irq(pdev, 0);
+	if (ret < 0)
 		goto release_both;
-	}
+	ndev->irq = ret;
 
 	lp = netdev_priv(ndev);
 	lp->netdev = ndev;
-- 
2.25.1

Re: [PATCH] drivers: net: smc911x: Fix wrong check for irq

From: Jakub Kicinski <kuba@kernel.org>
Date: 2021-12-24 23:04:33

On Fri, 24 Dec 2021 13:12:54 +0800 Jiasheng Jiang wrote:
Because ndev->irq is unsigned
It's not..

Re: [PATCH] drivers: net: smc911x: Fix wrong check for irq

From: Andrew Lunn <andrew@lunn.ch>
Date: 2021-12-25 15:12:08

On Fri, Dec 24, 2021 at 03:04:25PM -0800, Jakub Kicinski wrote:
On Fri, 24 Dec 2021 13:12:54 +0800 Jiasheng Jiang wrote:
quoted
Because ndev->irq is unsigned
It's not..
https://elixir.bootlin.com/linux/v5.16-rc6/source/include/linux/netdevice.h#L2065

Definitely an int.

	   Andrew
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