[PATCH] scripts/kwbimage: support empty binary.0 files

[Uwe Kleine-König]

While it doesn't make sense to use empty binary headers on a machine for
first stage, it is convenient to support this for build testing.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
---
 scripts/kwbimage.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/scripts/kwbimage.c b/scripts/kwbimage.c
index 5b84db3f7a23..2a052a7ff385 100644
--- a/scripts/kwbimage.c
+++ b/scripts/kwbimage.c
@@ -967,7 +967,11 @@ static void *image_create_v1(struct image_cfg_element *image_cfg,
 
 		cur += (binarye->binary.nargs + 1) * sizeof(unsigned int);
 
-		ret = fread(cur, s.st_size, 1, bin);
+		if (s.st_size)
+			ret = fread(cur, s.st_size, 1, bin);
+		else
+			ret = 1;
+
 		if (ret != 1) {
 			fprintf(stderr,
 				"Could not read binary image %s\n",
-- 
2.11.0