linux-kernel - Re: [PATCH v2 1/2] USB: core: add a memory pool to urb for host-controller private data

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Message-ID: <7419cfbc-1269-46fc-95b9-502e6fe23226@suse.com>
Date: Wed, 14 May 2025 14:03:02 +0200
From: Oliver Neukum <oneukum@...e.com>
To: David Wang <00107082@....com>, Oliver Neukum <oneukum@...e.com>
Cc: mathias.nyman@...el.com, gregkh@...uxfoundation.org,
 stern@...land.harvard.edu, linux-usb@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] USB: core: add a memory pool to urb for
 host-controller private data



On 14.05.25 13:51, David Wang wrote:
  
> I am not quite sure about the concern here, do you mean somebody create a urb,
> and then usb_init_urb() here, and never use urb_destroy to release it?

Yes.

> 
> That would cause memory leak if urb_destroy is not called......But is this really possible?.

I think a few drivers under drivers/media do so.

	Regards
		Oliver