From 12c58a8fb0cf3c7c0f8bbce4e152b40e133f50ae Mon Sep 17 00:00:00 2001 From: kib Date: Wed, 12 Mar 2014 16:38:55 +0000 Subject: Initialize paddr to handle the case of zero size. Reported and reviewed by: Conrad Meyer MFC after: 1 week --- sys/vm/device_pager.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sys/vm/device_pager.c b/sys/vm/device_pager.c index 13491ba..4cd245a 100644 --- a/sys/vm/device_pager.c +++ b/sys/vm/device_pager.c @@ -414,6 +414,7 @@ old_dev_pager_ctor(void *handle, vm_ooffset_t size, vm_prot_t prot, * XXX assumes VM_PROT_* == PROT_* */ npages = OFF_TO_IDX(size); + paddr = 0; /* Make paddr initialized for the case of size == 0. */ for (off = foff; npages--; off += PAGE_SIZE) { if (csw->d_mmap(dev, off, &paddr, (int)prot, &dummy) != 0) { dev_relthread(dev, ref); -- cgit v1.1