4d850406a8
When not assign a -dtb argument, the variable dtb_filename storage returned from qemu_find_file(), which should be freed after use. Alternatively we define a local variable filename, with 'char *' type, free after use. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>