linux-kernel - Re: [PATCH] usb: gadget: Fix unsigned comparison with less than zero

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Message-ID: <YrWjCnNJohij691b@kroah.com>
Date:   Fri, 24 Jun 2022 13:42:02 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Cc:     neal_liu@...eedtech.com, balbi@...nel.org, joel@....id.au,
        andrew@...id.au, sumit.semwal@...aro.org, christian.koenig@....com,
        linux-aspeed@...ts.ozlabs.org, linux-usb@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linaro-mm-sig@...ts.linaro.org
Subject: Re: [PATCH] usb: gadget: Fix unsigned comparison with less than zero

On Thu, Jun 23, 2022 at 04:43:47PM +0800, Jiapeng Chong wrote:
> This was found by coccicheck:
> 
> ./drivers/usb/gadget/udc/aspeed_udc.c:496:8-13: WARNING: Unsigned expression compared with zero: chunk >= 0.

What does this mean?  Where is the error?

Please explain the reason for changes, not just the output of a random
tool that you ran on the code.

> Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>

What commit does this fix?

thanks,

greg k-h