[PATCH v4 13/20] board: sandbox: Improve extension board scan implementation

[Kory Maincent (TI.com)]

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

Signed-off-by: Kory Maincent (TI.com) <kory.maincent at bootlin.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
---
 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