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| author | Marcus Meissner <meissner@suse.de> | 2009-01-15 13:51:00 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-15 16:39:37 -0800 |
| commit | 65a67bd2644bef225ee318dde76016a4697218fa (patch) | |
| tree | 4e3e40af9836c22b1c3c32a5a4667d7489b0acdc /Documentation/accounting | |
| parent | b098161b4d0231f7dc5306111d576c0bfe0c8eba (diff) | |
| download | lwn-65a67bd2644bef225ee318dde76016a4697218fa.tar.gz lwn-65a67bd2644bef225ee318dde76016a4697218fa.zip | |
Documentation/accounting/getdelays.c: fix endless loop
When no option is passed to getdelays it just hangs, waiting
for a reply which will never come.
This patch prints usage() when no output marker is specified.
Signed-off-by: Marcus Meissner <meissner@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/accounting')
| -rw-r--r-- | Documentation/accounting/getdelays.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/accounting/getdelays.c b/Documentation/accounting/getdelays.c index cc49400b4af8..7ea231172c85 100644 --- a/Documentation/accounting/getdelays.c +++ b/Documentation/accounting/getdelays.c @@ -392,6 +392,10 @@ int main(int argc, char *argv[]) goto err; } } + if (!maskset && !tid && !containerset) { + usage(); + goto err; + } do { int i; |