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net: phy: fixed_phy: Fix NULL vs IS_ERR() checking in __fixed_phy_register 

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

Fixes: 5468e82f70 ("net: phy: fixed-phy: Drop GPIO from fixed_phy_add()")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20211224021500.10362-1-linmq006@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Miaoqian Lin 2021-12-24 02:14:59 +00:00 committed by Jakub Kicinski
parent 5471d5226c
commit b45396afa4
1 changed files with 2 additions and 2 deletions
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4
drivers/net/phy/fixed_phy.c
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@ -239,8 +239,8 @@ static struct phy_device *__fixed_phy_register(unsigned int irq,
/* Check if we have a GPIO associated with this fixed phy */
if (!gpiod) {
gpiod = fixed_phy_get_gpiod(np);
if (IS_ERR(gpiod))
return ERR_CAST(gpiod);
if (!gpiod)
return ERR_PTR(-EINVAL);
}
/* Get the next available PHY address, up to PHY_MAX_ADDR */