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[ Upstream commit6b77c06655] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>