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


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