[PATCH v0 14/20] ubi-utils: ubiblock: Return error code if command line option is unknown

[Daniel Wagner]

The tool will quit with an exit code 0 if the command line option was
not recognized. By returning an error code a calling script has the
possibility to distinguish between a real success and an invalid
invocation.

Signed-off-by: Daniel Wagner <daniel.wagner at siemens.com>
---
 ubi-utils/ubiblock.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ubi-utils/ubiblock.c b/ubi-utils/ubiblock.c
index 1e12be8fb978..8e366789a88c 100644
--- a/ubi-utils/ubiblock.c
+++ b/ubi-utils/ubiblock.c
@@ -78,11 +78,15 @@ static int parse_opt(int argc, char * const argv[])
 			args.node = optarg;
 			break;
 		case 'h':
-		case '?':
 			printf("%s\n\n", doc);
 			printf("%s\n\n", usage);
 			printf("%s\n", optionsstr);
 			exit(EXIT_SUCCESS);
+		case '?':
+			printf("%s\n\n", doc);
+			printf("%s\n\n", usage);
+			printf("%s\n", optionsstr);
+			return -1;
 
 		case 'V':
 			common_print_version();
-- 
2.9.4