From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 10 Aug 2015 17:22:43 +0000 (-0300)
Subject: mkiss: Fix error handling in mkiss_open()
X-Git-Tag: omap-for-v4.3/fixes-merge-window~107^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9d332d92a95c9c67abe08b5f7cba64d8fc1e3c76;p=pandora-kernel.git

mkiss: Fix error handling in mkiss_open()

If register_netdev() fails we are not propagating the error and
we return success because ax_open() succeeded previously.

Fix this by checking the return value of ax_open() and
register_netdev() and propagate the error in case of failure.

Reported-by: RUC_Soft_Sec <zy900702@163.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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