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Date:   Wed, 07 Aug 2019 12:21:27 +0200
Message-ID: <s5hwofpl1i0.wl-tiwai@suse.de>
From:   Takashi Iwai <tiwai@suse.de>
To:     Wenwen Wang <wenwen@cs.uga.edu>
Cc:     "moderated list:SOUND" <alsa-devel@alsa-project.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Allison Randal <allison@lohutok.net>,
        Jaroslav Kysela <perex@perex.cz>,
        Takashi Iwai <tiwai@suse.com>,
        open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3] ALSA: hiface: fix multiple memory leak bugs
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References: <1565168932-6337-1-git-send-email-wenwen@cs.uga.edu>
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On Wed, 07 Aug 2019 11:08:51 +0200,
Wenwen Wang wrote:
> 
> In hiface_pcm_init(), 'rt' is firstly allocated through kzalloc(). Later
> on, hiface_pcm_init_urb() is invoked to initialize 'rt->out_urbs[i]'. In
> hiface_pcm_init_urb(), 'rt->out_urbs[i].buffer' is allocated through
> kzalloc().  However, if hiface_pcm_init_urb() fails, both 'rt' and
> 'rt->out_urbs[i].buffer' are not deallocated, leading to memory leak bugs.
> Also, 'rt->out_urbs[i].buffer' is not deallocated if snd_pcm_new() fails.
> 
> To fix the above issues, free 'rt' and 'rt->out_urbs[i].buffer'.
> 
> Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>

Applied now.  Thanks!


Takashi