trig-timer: output support

Signed-off-by: Alessandro Rubini <rubini@gnudd.com> Acked-by: Federico Vaga <federico.vaga@gmail.com>

trig-timer: output support
Signed-off-by: Alessandro Rubini <rubini@gnudd.com> Acked-by: Federico Vaga <federico.vaga@gmail.com>
62d46235 · Alessandro Rubini · Federico Vaga · 74b54198 · 62d46235
Commit 62d46235 authored Nov 14, 2011 by Alessandro Rubini Committed by Federico Vaga Nov 15, 2011
Hide whitespace changes
Inline Side-by-side

Showing with 4 additions and 3 deletions

zio-trig-timer.c triggers/zio-trig-timer.c +4 -3

No files found.
--- a/triggers/zio-trig-timer.c
+++ b/triggers/zio-trig-timer.c
@@ -91,11 +91,12 @@ static void ztt_fn(unsigned long arg)
 static int ztt_push_block(struct zio_ti *ti, struct zio_channel *chan,
 			  struct zio_block *block)
 {
-	/* FIXME: we currently have no support for output */
-
+	/* software triggers must store pending stuff in chan->t_priv */
 	pr_debug("%s:%d\n", __func__, __LINE__);

-	chan->bi->b_op->free_block(chan->bi, block);
+	if (chan->t_priv)
+		return -EBUSY;
+	chan->t_priv = block;
 	return 0;
 }