From 62d4623515b13c7906ed9a956c3baad1ce527a2e Mon Sep 17 00:00:00 2001
From: Alessandro Rubini <rubini@gnudd.com>
Date: Mon, 14 Nov 2011 02:43:37 +0100
Subject: [PATCH] trig-timer: output support
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Federico Vaga <federico.vaga@gmail.com>
---
triggers/zio-trig-timer.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/triggers/zio-trig-timer.c b/triggers/zio-trig-timer.c
index 100fdf6..31caff0 100644
--- 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;
}
--
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