net: phy: smsc: bail out in lan87xx_read_status if genphy_read_status fails

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[ Upstream commit c22c3bbf35 ]

If genphy_read_status fails then further access to the PHY may result
in unpredictable behavior. To prevent this bail out immediately if
genphy_read_status fails.

Fixes: 4223dbffed ("net: phy: smsc: Re-enable EDPD mode for LAN87xx")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/026aa4f2-36f5-1c10-ab9f-cdb17dda6ac4@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Heiner Kallweit 2023-03-11 19:34:45 +01:00 • committed by Greg Kroah-Hartman

parent 9b86a8702b

commit 346940f042

1 changed files with 4 additions and 1 deletions

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drivers/net/phy/smsc.c

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