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Felix Fietkau
26e36bf38f
mvif->roc_phy points to the phy of the request that started last for the interface. That request can end, and the phy can start a request for a different interface. The driver does not always clear the pointer. Two callers trust the pointer: - mt76_vif_cleanup() aborts the request on that phy when the driver removes the interface. - mt76_cancel_remain_on_channel() aborts the request on that phy for the interface. If the phy holds a request for a different interface, both callers abort the wrong request. The request of the interface stays active. Its work then runs after the driver removes the interface. The work tears the link down through the freed bss_conf. Compare phy->roc_vif with the interface in both callers before the abort. Link: https://patch.msgid.link/[email protected] Signed-off-by: Felix Fietkau <[email protected]>