[PATCH 5.15 039/128] net: ks8851: Check for error irq

Greg Kroah-Hartman
2021-12-27T15:46:09Z

From: Jiasheng Jiang <jiasheng@iscas.ac.cn>

[ Upstream commit 99d7fbb5cedf598f67e8be106d6c7b8d91366aef ]

Because platform_get_irq() could fail and return error irq.
Therefore, it might be better to check it if order to avoid the use of
error irq.

Fixes: 797047f875b5 ("net: ks8851: Implement Parallel bus operations")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/micrel/ks8851_par.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/micrel/ks8851_par.c b/drivers/net/ethernet/micrel/ks8851_par.c
index 2e8fcce50f9d1..c6f517c07bb9a 100644
--- a/drivers/net/ethernet/micrel/ks8851_par.c
+++ b/drivers/net/ethernet/micrel/ks8851_par.c
@@ -321,6 +321,8 @@ static int ks8851_probe_par(struct platform_device *pdev)
return ret;

netdev->irq = platform_get_irq(pdev, 0);
+ if (netdev->irq < 0)
+ return netdev->irq;

return ks8851_probe_common(netdev, dev, msg_enable);
}
--
2.34.1