Re: [PATCH v4 0/2] usb: gadget: f_fs: Prevent race between functionfs_unbind & ffs_ep0_queue_wait

[Udipto Goswami <quic_ugoswami@xxxxxxxxxxx>]

Hi All,


On 12/15/22 10:55 AM, Udipto Goswami wrote:
> This series will prevent race between ep0_queue_wait &
> functionfs_unbind. Currently, both routines are running
> without any kind of serialization to make sure ep0req
> doesn't get corrupted.
>
> Changes in v4:
> Split the implementation of v3 [1] into a series for better clarity.
>
> Changes in v3:
> Moved dequeue out of mutex to prevent deadlock.
>
> Changes in v2:
> Replaces spinlock with mutex & added dequeue operation in unbind.
>
> [1]: https://patchwork.kernel.org/project/linux-usb/patch/20221125054119.25135-1-quic_ugoswami@xxxxxxxxxxx/
>
> Udipto Goswami (2):
>    usb: gadget: f_fs: Prevent race during ffs_ep0_queue_wait
>    usb: gadget: f_fs: Ensure ep0req is dequeued before free_request
>
>   drivers/usb/gadget/function/f_fs.c | 7 +++++++
>   1 file changed, 7 insertions(+)
Please ignore this individual cover letter, sent out a v4 series with 
and updated cover letter.
Apologies for the confusion.

Thanks,
-Udipto