From: Jia-Ju Bai <baijiaju1990@163.com>
Date: Mon, 3 Aug 2015 02:40:48 +0000 (+0800)
Subject: e100: Release skb when DMA mapping is failed in e100_xmit_prepare
X-Git-Tag: omap-for-v4.3/fixes-rc1~110^2~132^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5e5d49422dfb035ca9e280cd61d434095c151272;p=pandora-kernel.git

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@163.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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