From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 22 Dec 2014 07:52:39 +0000 (+0300)
Subject: Staging: lustre: error handling tweaks in obd_ioctl_getdata()
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~83^2~321
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3b66ea435234aab8fd8f389e929baedb556726c4;p=pandora-kernel.git

Staging: lustre: error handling tweaks in obd_ioctl_getdata()

1)  The places which called copy_from_user() were returning the number
of bytes not copied instead of -EFAULT.

2) The user could trigger a memory leak if the condition
"(hdr.ioc_len != data->ioc_len)" was true.  Instead of adding a new call
to OBD_FREE_LARGE(), I created a free_buf label and changed everything
to use that label.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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