[FS#800] ath9k sta and ap mode change. system hang

[LEDE Bugs]

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FS#800 - ath9k sta  and ap mode  change. system hang
User who did this: Baptiste Jonglez (bjonglez)
Status: Unconfirmed -> Waiting on reporter

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=800