fee6692c83d3b283e29820e840280
author WANG Cong <xiyou.wangcong@gmail.com> 1178703216 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1178739049 -0700

nbd: check the return value of sysfs_create_file

[akpm@linux-foundation.org: fix it]
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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