Btrfs: check btrfs_get_extent return for IS_ERR()
authorDan Carpenter <error27@gmail.com>
Sat, 20 Mar 2010 11:22:10 +0000 (11:22 +0000)
committerChris Mason <chris.mason@oracle.com>
Wed, 31 Mar 2010 01:19:09 +0000 (21:19 -0400)
btrfs_get_extent() never returns NULL, only a valid pointer or ERR_PTR()

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

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