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(parent: 8c02e5b) | 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)
commit87b997a50830757b8732181448e81f6b6d4cf3f6
treeeb25c5a6b7e4105c3ff95af5d584b189d6697d0dtree | snapshot
parent8c02e5bea46795b88b4ecce7da6427f3933c3cf5commit | 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: a3885102787c ("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
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