makedevs: rectify the exit codes and handle the invalid parameter

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@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

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 cc3707b2c804a53ac5d867af401110f0866494ce..5d2c45b310a3f94052663e037ed095bff877c81e 100644 (file)
--- 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);
                }
        }