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phy: ti: gmii-sel: check of_get_address() for failure

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[ Upstream commit 8d55027f4e ]

Smatch complains that if of_get_address() returns NULL, then "size"
isn't initialized.  Also it would lead to an Oops.

Fixes: 7f78322cdd ("phy: ti: gmii-sel: retrieve ports number and base offset from dt")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/20210914110038.GB11657@kili
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2021-09-14 14:00:38 +03:00 committed by Greg Kroah-Hartman
parent ca1e04c638
commit 69cd3bdff8
1 changed files with 2 additions and 0 deletions
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2
drivers/phy/ti/phy-gmii-sel.c
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@ -320,6 +320,8 @@ static int phy_gmii_sel_init_ports(struct phy_gmii_sel_priv *priv)
u64 size;
offset = of_get_address(dev->of_node, 0, &size, NULL);
if (!offset)
return -EINVAL;
priv->num_ports = size / sizeof(u32);
if (!priv->num_ports)
return -EINVAL;