[OE-core] [PATCH] makedevs: rectify the exit codes and handle the invalid parameter

[rongqing.li at windriver.com]

From: Roy Li <rongqing.li at windriver.com>

It is correct behaviours to output help and version information,
and should return 0;
When input parameter is invalid, print help information and exit.

Signed-off-by: Roy Li <rongqing.li at windriver.com>
---
 meta/recipes-devtools/makedevs/makedevs-1.0.0/makedevs.c |    9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/meta/recipes-devtools/makedevs/makedevs-1.0.0/makedevs.c b/meta/recipes-devtools/makedevs/makedevs-1.0.0/makedevs.c
index cc3707b..5d2c45b 100644
--- a/meta/recipes-devtools/makedevs/makedevs-1.0.0/makedevs.c
+++ b/meta/recipes-devtools/makedevs/makedevs-1.0.0/makedevs.c
@@ -465,8 +465,8 @@ int main(int argc, char **argv)
 				error_msg_and_die("%s: not a proper device table file", optarg);
 			break;
 		case 'h':
-			fprintf(stderr, helptext);
-			exit(1);
+			printf(helptext);
+			exit(0);
 		case 'r':
 		case 'd':				/* for compatibility with mkfs.jffs, genext2fs, etc... */
 			if (rootdir != default_rootdir) {
@@ -476,8 +476,11 @@ int main(int argc, char **argv)
 			break;
 
 		case 'v':
-			fprintf(stderr, "makedevs revision %.*s\n",
+			printf("makedevs revision %.*s\n",
 					(int) strlen(revtext) - 13, revtext + 11);
+			exit(0);
+		default:
+			fprintf(stderr, helptext);
 			exit(1);
 		}
 	}
-- 
1.7.10.4