zfs_sb_create would normally takes ownership of zmo, and it will be freed in
zfs_sb_free. However, when zfs_sb_create fails we need to explicit free it.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Closes#5490Closes#5496
ZFS is an advanced file system and volume manager which was originally
developed for Solaris and is now maintained by the Illumos community.
ZFS on Linux, which is also known as ZoL, is currently feature complete. It
includes fully functional and stable SPA, DMU, ZVOL, and ZPL layers. And it's native!