Re: [PATCH] usb: host: u132-hcd: Remove u132_static_list and list head u132_list

From: Greg KH
Date: Sat Apr 04 2020 - 05:23:17 EST


On Fri, Apr 03, 2020 at 11:48:16PM +0530, madhuparnabhowmik10@xxxxxxxxx wrote:
> From: Madhuparna Bhowmik <madhuparnabhowmik10@xxxxxxxxx>
>
> u132_static_list is a global list protected by u132_module_lock.
> It is read in the u132_hcd_exit() function without holding the lock
> thus may lead to data race.
> However, it turns out that this list isn't used for anything useful
> and thus it is okay to get rid of it.
> Thus, remove the u132_static_list from u132-hcd module.
> Also remove struct list_head u132_list from struct u132.
>
> Found by Linux Driver Verification project (linuxtesting.org).
>
> Suggested-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@xxxxxxxxx>
> ---
> drivers/usb/host/u132-hcd.c | 10 ----------
> 1 file changed, 10 deletions(-)

Please properly version your patches, otherwise I have no idea what
changed from the previous one, nor do I know which patch to take over
which.

The instructions for how to do this is in the documentation. Please fix
up and resend so I have a chance to know what to do...

thanks,

greg k-h