Re: [PATCH 1/1] usb: gadget: f_hid: Conduct proper refcounting on shared f_hidg pointer

[Greg KH]

On Thu, Nov 17, 2022 at 12:08:13PM +0000, Lee Jones wrote:
> A reference to struct f_hidg is shared with this driver's associated
> character device handling component without provision for life-time
> handling.  In some circumstances, this can lead to unwanted
> behaviour depending on the order in which things are torn down.
> 
> Utilise, the reference counting functionality already provided by the
> implanted character device structure to ensure the struct f_hidg's
> memory is only freed once the character device handling has finished
> with it.
> 
> Signed-off-by: Lee Jones <lee@xxxxxxxxxx>
> ---
>  drivers/usb/gadget/function/f_hid.c | 47 +++++++++++++++++++++++------
>  1 file changed, 37 insertions(+), 10 deletions(-)

Hi,

This is the friendly patch-bot of Greg Kroah-Hartman.  You have sent him
a patch that has triggered this response.  He used to manually respond
to these common problems, but in order to save his sanity (he kept
writing the same thing over and over, yet to different people), I was
created.  Hopefully you will not take offence and will fix the problem
in your patch and resubmit it so that it can be accepted into the Linux
kernel tree.

You are receiving this message because of the following common error(s)
as indicated below:

- This looks like a new version of a previously submitted patch, but you
  did not list below the --- line any changes from the previous version.
  Please read the section entitled "The canonical patch format" in the
  kernel file, Documentation/SubmittingPatches for what needs to be done
  here to properly describe this.

If you wish to discuss this problem further, or you have questions about
how to resolve this issue, please feel free to respond to this email and
Greg will reply once he has dug out from the pending patches received
from other developers.

thanks,

greg k-h's patch email bot