Add error processing for ext4_mb_load_buddy when it calls
ext4_mb_init_cache.
Signed-off-by: NShen Feng <shen@cn.fujitsu.com>
Reviewed-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: NMingming Cao <cmm@us.ibm.com>
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>