sandbox: Fix warnings in cpu.c and os.c
This fixes the following two problems:
cppcheck reports:
[arch/sandbox/cpu/start.c:132]: (error) Uninitialized variable: err
[arch/sandbox/cpu/os.c:371]: (error) Memory leak: fname
Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Wolfgang Denk <wd@denx.de>
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index 0df7770..42353d8 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -130,7 +130,8 @@
state->write_ram_buf = true;
state->ram_buf_fname = arg;
- if (os_read_ram_buf(arg)) {
+ err = os_read_ram_buf(arg);
+ if (err) {
printf("Failed to read RAM buffer\n");
return err;
}