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Devin WittmayerandFelix Fietkau
4f2aa9910e
mt7925e_mac_reset() ignores the return value of
mt792xe_mcu_drv_pmctrl(), unlike the two pmctrl calls later in the same
function. When the driver-own handshake fails,
__mt792xe_mcu_drv_pmctrl() returns -EIO without reinitialising WPDMA or
clearing MT76_STATE_PM, and the reset carries on: it writes the
interrupt enable registers, cycles NAPI, resets WPDMA and calls
mt7925_run_firmware() on a chip the driver does not own.
Return the error instead. The call is the first statement in the
function, before MT76_RESET is set and before the TX worker and NAPI
are disabled, so nothing needs unwinding.
Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Signed-off-by: Devin Wittmayer <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>