On Tue, Apr 05, 2022 at 01:47:47PM -0600, Jane Chu wrote: > + off = (unsigned long)addr & ~PAGE_MASK; offset_inpage() > + if (off || !(PAGE_ALIGNED(bytes))) { No need for the inner braces. > + mutex_lock(&pmem->recovery_lock); > + pmem_off = PFN_PHYS(pgoff) + pmem->data_offset; > + cleared = __pmem_clear_poison(pmem, pmem_off, len); > + if (cleared > 0 && cleared < len) { > + dev_warn(dev, "poison cleared only %ld out of %lu\n", > + cleared, len); > + mutex_unlock(&pmem->recovery_lock); > + return 0; > + } else if (cleared < 0) { No need for an else after a return.