1) Use of uninitialized value 'nphys'

   => src/dutil_linux.c

   a) line 1022: declaring nphys
   b) line 1028: allocation of "bridge_node" failed
   c) line 1029: goto err;
   d) line 1055: for (ii = 0, ii < nphys, ..)

2) Use of uninitialized value "phys_names"

   => src/dutil_linux.c:1021

   the same situation as above. When xml_node fails, program jumps
   to line 1054 and tries to free uninitialized value.

These problems were newly found in RHEL 6.2 by coverity difference scan on RHEL packages 6.1 → 6.2.