If no operations were specified then ensure we emit the usage.
Signed-off-by: Andy Whitcroft <[EMAIL PROTECTED]>
---
hugeadm.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/hugeadm.c b/hugeadm.c
index 8434eef..9c7ae1c 100644
--- a/hugeadm.c
+++ b/hugeadm.c
@@ -244,6 +244,8 @@ void page_sizes(int all)
int main(int argc, char** argv)
{
+ int ops;
+
char opts[] = "+h";
int ret = 0, index = 0;
struct option long_opts[] = {
@@ -262,6 +264,7 @@ int main(int argc, char** argv)
hugetlbfs_setup_debug();
setup_mounts();
+ ops = 0;
while (ret != -1) {
ret = getopt_long(argc, argv, opts, long_opts, &index);
switch (ret) {
@@ -301,10 +304,12 @@ int main(int argc, char** argv)
ret = -1;
break;
}
+ if (ret != -1)
+ ops++;
}
index = optind;
- if ((argc - index) != 0) {
+ if ((argc - index) != 0 || ops == 0) {
print_usage();
exit(EXIT_FAILURE);
}
--
1.6.0.2.711.gf1ba4
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