3 files changed, 15 insertions, 12 deletions
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index 1c4aa3f9bc..4d5f805753 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -367,6 +367,7 @@ int os_dirent_ls(const char *dirname, struct os_dirent_node **headp)
 
 done:
 	closedir(dir);
+	free(fname);
 	return ret;
 }
 
@@ -385,7 +386,7 @@ const char *os_dirent_get_typename(enum os_dirent_t type)
 	return os_dirent_typename[OS_FILET_UNKNOWN];
 }
 
-ssize_t os_get_filesize(const char *fname)
+int os_get_filesize(const char *fname, loff_t *size)
 {
 	struct stat buf;
 	int ret;
@@ -393,7 +394,8 @@ ssize_t os_get_filesize(const char *fname)
 	ret = stat(fname, &buf);
 	if (ret)
 		return ret;
-	return buf.st_size;
+	*size = buf.st_size;
+	return 0;
 }
 
 void os_putc(int ch)
@@ -427,11 +429,11 @@ int os_read_ram_buf(const char *fname)
 {
 	struct sandbox_state *state = state_get_current();
 	int fd, ret;
-	int size;
+	loff_t size;
 
-	size = os_get_filesize(fname);
-	if (size < 0)
-		return -ENOENT;
+	ret = os_get_filesize(fname, &size);
+	if (ret < 0)
+		return ret;
 	if (size != state->ram_size)
 		return -ENOSPC;
 	fd = open(fname, O_RDONLY);
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index 53a99ae71b..42353d80a8 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -39,7 +39,7 @@ int sandbox_early_getopt_check(void)
 
 	max_arg_len = 0;
 	for (i = 0; i < num_options; ++i)
-		max_arg_len = max(strlen(sb_opt[i]->flag), max_arg_len);
+		max_arg_len = max((int)strlen(sb_opt[i]->flag), max_arg_len);
 	max_noarg_len = max_arg_len + 7;
 
 	for (i = 0; i < num_options; ++i) {
@@ -130,7 +130,8 @@ static int sandbox_cmdline_cb_memory(struct sandbox_state *state,
 	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;
 	}
diff --git a/arch/sandbox/cpu/state.c b/arch/sandbox/cpu/state.c
index 59adad653c..ba73b7e251 100644
--- a/arch/sandbox/cpu/state.c
+++ b/arch/sandbox/cpu/state.c
@@ -49,14 +49,14 @@ static int state_ensure_space(int extra_size)
 
 static int state_read_file(struct sandbox_state *state, const char *fname)
 {
-	int size;
+	loff_t size;
 	int ret;
 	int fd;
 
-	size = os_get_filesize(fname);
-	if (size < 0) {
+	ret = os_get_filesize(fname, &size);
+	if (ret < 0) {
 		printf("Cannot find sandbox state file '%s'\n", fname);
-		return -ENOENT;
+		return ret;
 	}
 	state->state_fdt = os_malloc(size);
 	if (!state->state_fdt) {