linux-kernel - [PATCH 8/8] staging: tidspbridge - make sync_wait_on

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Date:	Mon, 25 Oct 2010 19:51:46 -0500
From:	Fernando Guzman Lugo <x0095840@...com>
To:	<gregkh@...e.de>
Cc:	<felipe.contreras@...ia.com>, <Hiroshi.DOYU@...ia.com>,
	<linux-kernel@...r.kernel.org>, <andy.shevchenko@...il.com>,
	<linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	Fernando Guzman Lugo <x0095840@...com>
Subject: [PATCH 8/8] staging: tidspbridge - make sync_wait_on_event interruptible

So that avoid non-killable process.

Signed-off-by: Fernando Guzman Lugo <x0095840@...com>
---
 .../staging/tidspbridge/include/dspbridge/sync.h   |   13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/tidspbridge/include/dspbridge/sync.h b/drivers/staging/tidspbridge/include/dspbridge/sync.h
index e2651e7..df05b8f 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/sync.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/sync.h
@@ -80,13 +80,22 @@ void sync_set_event(struct sync_object *event);
  * This functios will wait until @event is set or until timeout. In case of
  * success the function will return 0 and
  * in case of timeout the function will return -ETIME
+ * in case of signal the function will return -ERESTARTSYS
  */
 
 static inline int sync_wait_on_event(struct sync_object *event,
 							unsigned timeout)
 {
-	return wait_for_completion_timeout(&event->comp,
-		msecs_to_jiffies(timeout)) ? 0 : -ETIME;
+	int res;
+
+	res = wait_for_completion_interruptible_timeout(&event->comp,
+						msecs_to_jiffies(timeout));
+	if (!res)
+		res = -ETIME;
+	else if (res > 0)
+		res = 0;
+
+	return res;
 }
 
 /**
-- 
1.6.3.3

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