Description: lan966x: Fix crash when adding interface under a lag
References:
Notes:
 carnil> Introduced in cabc9d49333d ("net: lan966x: Add lag support for lan966x").
 carnil> Vulnerable versions: 6.1-rc1.
Bugs:
upstream: released (6.8-rc5) [15faa1f67ab405d47789d4702f587ec7df7ef03e]
6.7-upstream-stable: released (6.7.6) [2a492f01228b7d091dfe38974ef40dccf8f9f2f1]
6.6-upstream-stable: released (6.6.18) [48fae67d837488c87379f0c9f27df7391718477c]
6.1-upstream-stable: released (6.1.79) [b9357489c46c7a43999964628db8b47d3a1f8672]
5.10-upstream-stable: N/A "Vulnerable code not present"
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (6.7.7-1)
6.1-bookworm-security: released (6.1.82-1)
5.10-bullseye-security: N/A "Vulnerable code not present"
4.19-buster-security: N/A "Vulnerable code not present"