libxfs: don't barf in libxfs_bwrite on a null buffer ops name

Don't crash if we failed to write a buffer that had no buffer verifier.
This should be rare in practice, but coverity found a valid bug.

Coverity-id: 1460462
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>

1 file changed