linux-kernel - Re: [PATCH] ALSA: usb-audio: Fix incorrect NULL check in create_yamaha_midi

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Date:   Mon, 18 Nov 2019 15:34:40 +0100
From:   Pavel Machek <pavel@...x.de>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     alsa-devel@...a-project.org, Pavel Machek <pavel@...x.de>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ALSA: usb-audio: Fix incorrect NULL check in
 create_yamaha_midi_quirk()

On Wed 2019-11-13 12:12:59, Takashi Iwai wrote:
> The commit 60849562a5db ("ALSA: usb-audio: Fix possible NULL
> dereference at create_yamaha_midi_quirk()") added NULL checks in
> create_yamaha_midi_quirk(), but there was an overlook.  The code
> allows one of either injd or outjd is NULL, but the second if check
> made returning -ENODEV if any of them is NULL.  Fix it in a proper
> form.
> 
> Fixes: 60849562a5db ("ALSA: usb-audio: Fix possible NULL dereference at create_yamaha_midi_quirk()")
> Reported-by: Pavel Machek <pavel@...x.de>
> Cc: <stable@...r.kernel.org>
> Signed-off-by: Takashi Iwai <tiwai@...e.de>

Thanks for doing this.

Acked-by: Pavel Machek <pavel@...x.de>
								Pavel
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HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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