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由 Jeff Mahoney 提交于
If btrfs_del_root fails in btrfs_drop_snapshot, we'll pick up the error but then return 0 anyway due to mixing err and ret. Fixes: 79787eaa ("btrfs: replace many BUG_ONs with proper error handling") Cc: <stable@vger.kernel.org> # v3.4+ Signed-off-by: NJeff Mahoney <jeffm@suse.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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