mkimage: Require a data file when auto-fit is used
When auto-fit is used, it is not valid to create a FIT without an image
file. Add a check for this to avoid a very confusing error message later
("Can't open (null): Bad address").
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/tools/mkimage.c b/tools/mkimage.c
index 66d29ab..a36c031 100644
--- a/tools/mkimage.c
+++ b/tools/mkimage.c
@@ -276,6 +276,8 @@
/* For auto_its, datafile is always 'auto' */
if (!params.auto_its)
params.datafile = datafile;
+ else if (!params.datafile)
+ usage("Missing data file for auto-FIT (use -d)");
} else if (type != IH_TYPE_INVALID) {
params.type = type;
}