RE: [EXT] [BUG] net: wireless: mwifiex: A possible sleep-in-atomic-context bug in mwifiex_wait_queue_complete()

[Ganapathi Bhat]

Hi Jia-Ju,

>
> [FUNC] schedule_timeout
> drivers/net/wireless/marvell/mwifiex/sta_ioctl.c, 63:
>      schedule_timeout in mwifiex_wait_queue_complete
> drivers/net/wireless/marvell/mwifiex/cmdevt.c, 673:
>      mwifiex_wait_queue_complete in mwifiex_send_cmd
Here, mwifiex_send_cmd does not call mwifiex_wait_queue_complete, because the sync parameter is false.
Note that the function mwifiex_multi_chan_resync did call mwifiex_send_cmd with sync = false.
> drivers/net/wireless/marvell/mwifiex/main.c, 1046:
>      mwifiex_send_cmd in mwifiex_multi_chan_resync
> drivers/net/wireless/marvell/mwifiex/usb.c, 288:
>      mwifiex_multi_chan_resync in mwifiex_usb_tx_complete
>
Thanks,
Ganapathi