Fix segfault in od_state_clear() on OD_EFAULT.
Fix segfault in od_state_clear() on OD_EFAULT.

Only subtract block size padding from bsize when array has been allocated.

xiph/daala,xiph/daala,luctrudeau/daala,ycho/daala,ycho/daala,luctrudeau/daala,luctrudeau/daala,ycho/daala,xiph/daala,xiph/daala,xiph/daala,ycho/daala,luctrudeau/daala,ycho/daala,luctrudeau/daala