linux-kernel - RE: [Intel-wired-lan] [PATCH] e100: Release skb when DMA mapping is failed in e100_xmit

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Message-ID: <309B89C4C689E141A5FF6A0C5FB2118B81AE8727@ORSMSX101.amr.corp.intel.com>
Date:	Tue, 18 Aug 2015 02:54:01 +0000
From:	"Brown, Aaron F" <aaron.f.brown@...el.com>
To:	Jia-Ju Bai <baijiaju1990@....com>,
	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [Intel-wired-lan] [PATCH] e100: Release skb when DMA mapping is
	failed in e100_xmit_prepare

> From: Intel-wired-lan [mailto:intel-wired-lan-bounces@...ts.osuosl.org] On
> Behalf Of Jia-Ju Bai
> Sent: Sunday, August 02, 2015 7:41 PM
> To: Kirsher, Jeffrey T; Brandeburg, Jesse
> Cc: netdev@...r.kernel.org; Jia-Ju Bai; intel-wired-lan@...ts.osuosl.org;
> linux-kernel@...r.kernel.org
> Subject: [Intel-wired-lan] [PATCH] e100: Release skb when DMA mapping is
> failed in e100_xmit_prepare
> 
> When pci_dma_mapping_error in e100_xmit_prepare is failed, the skb buffer
> allocated by netdev_alloc_skb_ip_align in e100_rx_alloc_skb is not
> released, which causes a possible resource leak.
> This patch adds error handling code to fix it.
> 
> Signed-off-by: Jia-Ju Bai <baijiaju1990@....com>
> ---
>  drivers/net/ethernet/intel/e100.c |    5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)

Tested-by: Aaron Brown <aaron.f.brown@...el.com>
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