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Documentation/accounting/getdelays.c: fix endless loop

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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>
This commit is contained in:
Marcus Meissner 2009-01-15 13:51:00 -08:00 committed by Linus Torvalds
parent b098161b4d
commit 65a67bd264
1 changed files with 4 additions and 0 deletions
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4
Documentation/accounting/getdelays.c
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@ -392,6 +392,10 @@ int main(int argc, char *argv[])
goto err; goto err;
} }
} }
if (!maskset && !tid && !containerset) {
usage();
goto err;
}
do { do {
int i; int i;