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Michael Walle authored
of_find_mii_timestamper() returns NULL if no timestamper is found. Therefore, guard the unregister_mii_timestamper() calls. Fixes: 1dca22b1 ("net: mdio: of: Register discovered MII time stampers.") Signed-off-by: Michael Walle <michael@walle.cc> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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