Re: [PATCH 5.15 28/73] net: phy: fixed_phy: Fix NULL vs IS_ERR() checking in __fixed_phy_register

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On 1/3/2022 6:23 AM, Greg Kroah-Hartman wrote:
From: Miaoqian Lin <linmq006@xxxxxxxxx>

[ Upstream commit b45396afa4177f2b1ddfeff7185da733fade1dc3 ]

The fixed_phy_get_gpiod function() returns NULL, it doesn't return error
pointers, using NULL checking to fix this.i

Fixes: 5468e82f7034 ("net: phy: fixed-phy: Drop GPIO from fixed_phy_add()")
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Link: https://lore.kernel.org/r/20211224021500.10362-1-linmq006@xxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

Same as 5.4 and 5.10, this patch causes a regression on 5.15 as well and should be dropped. Since this is also affecting Linus' master a revert of that changes has been submitted to the net/master tree and should reach Linus' tree shortly assuming it gets applied:

https://lore.kernel.org/lkml/20220103193453.1214961-1-f.fainelli@xxxxxxxxx/

Thank you
--
Florian



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