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

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[ Upstream commit 6b77c06655b8a749c1a3d9ebc51e9717003f7e5a ]

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: 9deb48b53e7f ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Florian Fainelli
2022-05-10 20:17:51 -07:00
committed by Greg Kroah-Hartman
parent abe35bf3be
commit 9012209f43
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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@@ -3946,6 +3946,10 @@ static int bcmgenet_probe(struct platform_device *pdev)
goto err;
}
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);
if (IS_ERR(priv->base)) {