Coverity points out that the error-handling paths in the
boston_fdt_filter() function don't free the fdt that was allocated.
Fix the leak by using g_autofree.
Fixes: Coverity CID 1432275
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201106175823.1650-1-peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>