linux-kernel - Re: [PATCH] usb: Use IS_ERR_OR_NULL() instead of IS

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Message-ID: <20201106065217.GE697514@kroah.com>
Date:   Fri, 6 Nov 2020 07:52:17 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Wang Qing <wangqing@...o.com>
Cc:     Felipe Balbi <balbi@...nel.org>, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: Use IS_ERR_OR_NULL() instead of IS_ERR()

On Fri, Nov 06, 2020 at 11:31:18AM +0800, Wang Qing wrote:
> __usb_find_phy may return NULL, so we should use IS_ERR_OR_NULL()

Again with the subject line, "USB: phy: ..."  And are you sure this
function can return NULL?

thanks,

greg k-h