pps: use BUG_ON for kernel API safety checks
This way less overhead is involved when running production kernel. If you want to debug a pps client module please define DEBUG to enable the checks. Signed-off-by: Alexander Gordeev <lasaine@lvk.cs.msu.su> Acked-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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1 changed files with 2 additions and 4 deletions
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@ -166,10 +166,8 @@ void pps_event(struct pps_device *pps, struct pps_event_time *ts, int event,
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int captured = 0;
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struct pps_ktime ts_real;
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if ((event & (PPS_CAPTUREASSERT | PPS_CAPTURECLEAR)) == 0) {
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dev_err(pps->dev, "unknown event (%x)\n", event);
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return;
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}
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/* check event type */
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BUG_ON((event & (PPS_CAPTUREASSERT | PPS_CAPTURECLEAR)) == 0);
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dev_dbg(pps->dev, "PPS event at %ld.%09ld\n",
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ts->ts_real.tv_sec, ts->ts_real.tv_nsec);
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