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net: bcmgenet: Check for Wake-on-LAN interrupt probe deferral

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The interrupt controller supplying the Wake-on-LAN interrupt line maybe
modular on some platforms (irq-bcm7038-l1.c) and might be probed at a
later time than the GENET driver. We need to specifically check for
-EPROBE_DEFER and propagate that error to ensure that we eventually
fetch the interrupt descriptor.

Fixes: 9deb48b53e ("bcmgenet: add WOL IRQ check")
Fixes: 5b1f0e6294 ("net: bcmgenet: Avoid touching non-existent interrupt")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/20220511031752.2245566-1-f.fainelli@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Florian Fainelli 2022-05-10 20:17:51 -07:00 committed by Paolo Abeni
parent 00832b1d1a
commit 6b77c06655
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/broadcom/genet/bcmgenet.c
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@ -3999,6 +3999,10 @@ static int bcmgenet_probe(struct platform_device *pdev)
goto err; goto err;
} }
priv->wol_irq = platform_get_irq_optional(pdev, 2); priv->wol_irq = platform_get_irq_optional(pdev, 2);
if (priv->wol_irq == -EPROBE_DEFER) {
err = priv->wol_irq;
goto err;
}
priv->base = devm_platform_ioremap_resource(pdev, 0); priv->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(priv->base)) { if (IS_ERR(priv->base)) {