From 84dbeb87d1439d3a6614c95e82429542434bafb9 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 28 Mar 2014 11:06:00 +0300
Subject: [PATCH] Btrfs: kmalloc() doesn't return an ERR_PTR

The error handling was copy and pasted from memdup_user().  It should be
checking for NULL obviously.

Fixes: abccd00f8af2 ('btrfs: Fix 32/64-bit problem with BTRFS_SET_RECEIVED_SUBVOL ioctl')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
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