[PATCH v3 18/18] bootstrap: Warn if image size in BB header is zero

[Andrey Smirnov]

Signed-off-by: Andrey Smirnov <andrew.smirnov at gmail.com>
---
 lib/bootstrap/devfs.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/bootstrap/devfs.c b/lib/bootstrap/devfs.c
index b6edec7..5a64477 100644
--- a/lib/bootstrap/devfs.c
+++ b/lib/bootstrap/devfs.c
@@ -58,8 +58,12 @@ static unsigned int get_image_size(void *head)
 	unsigned int ret = 0;
 	unsigned int *psize = head + BAREBOX_HEAD_SIZE_OFFSET;
 
-	if (is_barebox_head(head))
+	if (is_barebox_head(head)) {
 		ret = *psize;
+		if (!ret)
+			bootstrap_err(
+				"image has correct magic, but the length is zero\n");
+	}
 	debug("Detected barebox image size %u\n", ret);
 
 	return ret;
-- 
2.1.4