Testcase:

qemu-system-arm -M n810 -kernel /dev/null -m 130

Without this patch, we get a segfault.

Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6577 c046a42c-6fe2-441c-8c8c-71466251a162