btrfs: Error handle for get_ref_objectid_v0() in relocate_block_group()

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We need error checking code for get_ref_objectid_v0() in
relocate_block_group(), to avoid unpredictable result, especially
for accessing uninitialized value(when function failed) after
this line.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>

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Zhaolei 2015-08-05 18:00:02 +08:00 • committed by Chris Mason

parent 55e3a601c8

commit 4b3576e450

1 changed files with 4 additions and 0 deletions

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fs/btrfs/relocation.c

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