Enhance the extension board scanning code in sandbox with better error
handling and code organization.

Signed-off-by: Kory Maincent <[email protected]>
---
 board/sandbox/sandbox.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/board/sandbox/sandbox.c b/board/sandbox/sandbox.c
index 0dc23a27dfc..c5d7b9651a9 100644
--- a/board/sandbox/sandbox.c
+++ b/board/sandbox/sandbox.c
@@ -113,11 +113,15 @@ int ft_board_setup(void *fdt, struct bd_info *bd)
 #ifdef CONFIG_CMD_EXTENSION
 int extension_board_scan(struct list_head *extension_list)
 {
-       struct extension *extension;
        int i;
 
        for (i = 0; i < 2; i++) {
+               struct extension *extension;
+
                extension = calloc(1, sizeof(struct extension));
+               if (!extension)
+                       return -ENOMEM;
+
                snprintf(extension->overlay, sizeof(extension->overlay), 
"overlay%d.dtbo", i);
                snprintf(extension->name, sizeof(extension->name), "extension 
board %d", i);
                snprintf(extension->owner, sizeof(extension->owner), "sandbox");

-- 
2.43.0

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