Fix potential crash found by smatch.
treea30ca62143703ac10eca3039385a266853610f12
-rw-r--r-- 17989 COPYING
-rw-r--r-- 9284 INSTALL
-rw-r--r-- 943 KnownBugs
-rw-r--r-- 339 Makefile.am
-rw-r--r-- 5395 NEWS
-rw-r--r-- 947 README
-rwxr-xr-x 2450 autogen.sh
-rw-r--r-- 4127 configure.ac
drwxr-xr-x - contrib
drwxr-xr-x - doc
drwxr-xr-x - src