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Date:   Thu, 13 Aug 2020 14:44:05 +0800 (GMT+08:00)
To:     "Takashi Iwai" <>
Cc:, "Jaroslav Kysela" <>,
        "Takashi Iwai" <>, "Mark Hills" <>,
        "Dan Carpenter" <>,
        "Arnd Bergmann" <>,
        "Pierre-Louis Bossart" <>,
        "Takashi Sakamoto" <>,
        "Giuliano Pochini" <>,,
Subject: Re: Re: [PATCH] ALSA: echoaudio: Fix memory leak in

> On Mon, 10 Aug 2020 08:14:58 +0200,
> Dinghao Liu wrote:
> > 
> > When restore_dsp_rettings() fails, chip should be freed
> > just like when init_hw() and request_irq() fails.
> > 
> > Fixes: 47b5d028fdce8 ("ALSA: Echoaudio - Add suspend support #2")
> > Signed-off-by: Dinghao Liu <>
> Actually it's rather wrong to call snd_echo_free() in the resume error
> path.  This may lead to an Oops at the next time the system goes to
> resume.  That said, we should drop snd_echo_free() calls in other
> error paths in snd_echo_resume() instead.

Thank you for your advice! I will send a new patch to fix this soon.


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