From: Clemens Ladisch <clemens@ladisch.de>
Date: Thu, 5 Jan 2012 21:16:24 +0000 (+0100)
Subject: ALSA: dice: check clock change timeout
X-Git-Tag: v3.13-rc1~2^2~120^2~5
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=640d9b421d4d8c7593aa8647479a4c7c6fe0ca65;p=profile%2Fivi%2Fkernel-x86-ivi.git

ALSA: dice: check clock change timeout

Output a warning if the wait for the clock change notification times
out.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 61dd00c..3395c8b 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -551,8 +551,9 @@ static int dice_change_rate(struct dice *dice, unsigned int clock_rate)
 	if (err < 0)
 		return err;
 
-	wait_for_completion_timeout(&dice->clock_accepted,
-				    msecs_to_jiffies(100));
+	if (!wait_for_completion_timeout(&dice->clock_accepted,
+					 msecs_to_jiffies(100)))
+		dev_warn(&dice->unit->device, "clock change timed out\n");
 
 	return 0;
 }