Btrfs: don't start the log transaction if the log tree init fails
Btrfs: don't start the log transaction if the log tree init fails

The old code would start the log transaction even the log tree init
failed, it was unnecessary. Fix it.

Signed-off-by: Miao Xie <d7fac3f7b328449401fe64671e732ac315caee28@cn.fujitsu.com>
Signed-off-by: Josef Bacik <631dfb3d07694fdcf26abc7aac2c6c2b641f8bde@fb.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs