On Sun, 02 Feb 2020 21:13:53 +0100, Michael Walle wrote:

Am 2020-01-31 16:49, schrieb Jakub Kicinski:

quoted

On Thu, 30 Jan 2020 18:44:50 +0100, Michael Walle wrote:  

quoted

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 <redacted>  

Applied both, thank you.  

Just for completeness, the subject should have to be [PATCH net], 
because its a fix, correct?

Yup.