| commit | 0e0daf6ac3be70608569262246f6dc33cb3f45fe | [log] [tgz] |
|---|---|---|
| author | Michael Walle <michael@walle.cc> | Thu Jan 30 18:44:50 2020 +0100 |
| committer | Jakub Kicinski <kuba@kernel.org> | Fri Jan 31 07:46:11 2020 -0800 |
| tree | eb25c5a6b7e4105c3ff95af5d584b189d6697d0d | |
| parent | 9f68e3655aae6d49d6ba05dd263f99f33c2567af [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>