linux-kernel - [08/53] Net, libertas: Resolve memory leak in if_spi_host_to

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Date:	Tue, 22 Nov 2011 16:23:15 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Jesper Juhl <jj@...osbits.net>,
	Dan Williams <dcbw@...hat.com>,
	"John W. Linville" <linville@...driver.com>
Subject: [08/53] Net, libertas: Resolve memory leak in if_spi_host_to_card()

3.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jesper Juhl <jj@...osbits.net>

commit fe09b32a4361bea44169b2063e8c867cabb6a8ba upstream.

If we hit the default case in the switch in if_spi_host_to_card() we'll leak
the memory we allocated for 'packet'. This patch resolves the leak by freeing
the allocated memory in that case.

Signed-off-by: Jesper Juhl <jj@...osbits.net>
Acked-by: Dan Williams <dcbw@...hat.com>
Signed-off-by: John W. Linville <linville@...driver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/net/wireless/libertas/if_spi.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/wireless/libertas/if_spi.c
+++ b/drivers/net/wireless/libertas/if_spi.c
@@ -997,6 +997,7 @@ static int if_spi_host_to_card(struct lb
 		spin_unlock_irqrestore(&card->buffer_lock, flags);
 		break;
 	default:
+		kfree(packet);
 		netdev_err(priv->dev, "can't transfer buffer of type %d\n",
 			   type);
 		err = -EINVAL;


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