The code to choose the filename to use does not cope with no name set at
all. Firstly the test for a name in net_boot_file_name tests the pointer
rather than the string it points to. Secondly the cleanup on exit in
this case attempts to free a global variable. Fix both issues.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
8910efa71b