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mt76: mt7921: fix the inconsistent state between bind and unbind

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We shouldn't put back the device into fw own state after wifi reset at
driver unbind stage to fix the following error because that is not the
consistent state the current driver bind stage expects.

localhost ~ # echo 0000:01:00.0 > /sys/bus/pci/drivers/mt7921e/unbind
localhost ~ # echo 0000:01:00.0 > /sys/bus/pci/drivers/mt7921e/bind
...
[  481.172969] mt7921e 0000:01:00.0: ASIC revision: feed0000
[  482.133547] mt7921e: probe of 0000:01:00.0 failed with error -110
-bash: echo: write error: No such device

Fixes: c1af184ba830 ("mt76: mt7921: fix dma hang in rmmod")
Co-developed-by: YN Chen <[email protected]>
Signed-off-by: YN Chen <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Tested-by: Chen-Yu Tsai <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Sean Wang
2021-09-24 17:42:06 +02:00
committed by Felix Fietkau
parent eb75b9266c
commit d7c4698435
1 changed files with 0 additions and 1 deletions
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mt7921/init.c
-1
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@@ -279,7 +279,6 @@ void mt7921_unregister_device(struct mt7921_dev *dev)
mt7921_mcu_drv_pmctrl(dev);
mt7921_dma_cleanup(dev);
mt7921_mcu_exit(dev);
mt7921_mcu_fw_pmctrl(dev);
tasklet_disable(&dev->irq_tasklet);
mt76_free_device(&dev->mt76);