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>
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@ -392,6 +392,10 @@ int main(int argc, char *argv[])
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goto err;
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}
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}
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if (!maskset && !tid && !containerset) {
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usage();
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goto err;
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}
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do {
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int i;
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