linux-kernel - [PATCH] au88x0: mem leak fix in snd_vortex

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Date:	Sat, 4 Aug 2007 02:09:25 +0200
From:	Jesper Juhl <jesper.juhl@...il.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	Manuel Jander <mjander@...edded.cl>,
	Jesper Juhl <jesper.juhl@...il.com>,
	alsa-devel@...a-project.org
Subject: [PATCH] au88x0: mem leak fix in snd_vortex_create()

Hi,

In sound/pci/au88x0/au88x0.c::snd_vortex_create() : 
The Coverity checker found that if we allocate storage for 'chip' 
but then leave via the  regions_out:  label, then we end up leaking 
the storage allocated for 'chip'.
I believe simply freeing 'chip' before the "return err;" line is 
all we need to fix this, but please double-check me :)


Signed-off-by: Jesper Juhl <jesper.juhl@...il.com>
---

diff --git a/sound/pci/au88x0/au88x0.c b/sound/pci/au88x0/au88x0.c
index 5ec1b6f..f70286a 100644
--- a/sound/pci/au88x0/au88x0.c
+++ b/sound/pci/au88x0/au88x0.c
@@ -232,6 +232,7 @@ snd_vortex_create(struct snd_card *card, struct pci_dev *pci, vortex_t ** rchip)
 	pci_disable_device(chip->pci_dev);
 	//FIXME: this not the right place to unregister the gameport
 	vortex_gameport_unregister(chip);
+	kfree(chip);
 	return err;
 }
 


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