binman: Return failure when a usage() message is generated

The tool must return an error code when invalid arguments are provided,
otherwise binman has no way of knowing that anything went wrong.

Correct this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Fixes: fab430be2f4 ("tools: add mkeficapsule command for UEFI...")

diff --git a/tools/mkeficapsule.c b/tools/mkeficapsule.c
index c112ae2..f28008a 100644 (file)
--- a/tools/mkeficapsule.c
+++ b/tools/mkeficapsule.c
@@ -977,7 +977,7 @@ int main(int argc, char **argv)
                        exit(EXIT_SUCCESS);
                default:
                        print_usage();
-                       exit(EXIT_SUCCESS);
+                       exit(EXIT_FAILURE);
                }
        }