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(parent: 9f68e36) | patch
net: mdio: of: fix potential NULL pointer derefernce
authorMichael Walle <michael@walle.cc>
Thu, 30 Jan 2020 17:44:50 +0000 (18:44 +0100)
committerJakub Kicinski <kuba@kernel.org>
Fri, 31 Jan 2020 15:46:11 +0000 (07:46 -0800)
commit0e0daf6ac3be70608569262246f6dc33cb3f45fe
treeeb25c5a6b7e4105c3ff95af5d584b189d6697d0dtree | snapshot
parent9f68e3655aae6d49d6ba05dd263f99f33c2567afcommit | diff
net: mdio: of: fix potential NULL pointer derefernce

of_find_mii_timestamper() returns NULL if no timestamper is found.
Therefore, guard the unregister_mii_timestamper() calls.

Fixes: 1dca22b18421 ("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>
drivers/of/of_mdio.c diff | blob | history
Domain: System / Kernel;