Tsutomu Itoh 3d6b5c3b5c Btrfs: check return value of ulist_alloc() properly ...

ulist_alloc() has the possibility of returning NULL.
So, it is necessary to check the return value.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>

2012-10-01 15:19:14 -04:00

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