From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Wed, 15 Jul 2009 09:36:51 +0000 (+0100)
Subject: ASoC: Error out if we can't determine a suitable WM9081 sysclk
X-Git-Tag: v2.6.33-rc3~4^2~202^2~60
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4b75e9476737dffef44a66818a4a481edd2512a1;p=platform%2Fkernel%2Flinux-3.10.git

ASoC: Error out if we can't determine a suitable WM9081 sysclk

Due to the flexibility of the WM9081 FLL this should never happen
in a real system.

Reported-by: Jaswinder Singh Rajput <jaswinder@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---

diff --git a/sound/soc/codecs/wm9081.c b/sound/soc/codecs/wm9081.c
index dbe2059..156f2a4 100644
--- a/sound/soc/codecs/wm9081.c
+++ b/sound/soc/codecs/wm9081.c
@@ -707,6 +707,10 @@ static int configure_clock(struct snd_soc_codec *codec)
 				    target > 3000000)
 					break;
 			}
+
+			if (i == ARRAY_SIZE(clk_sys_rates))
+				return -EINVAL;
+
 		} else if (wm9081->fs) {
 			for (i = 0; i < ARRAY_SIZE(clk_sys_rates); i++) {
 				new_sysclk = clk_sys_rates[i].ratio
@@ -714,6 +718,10 @@ static int configure_clock(struct snd_soc_codec *codec)
 				if (new_sysclk > 3000000)
 					break;
 			}
+
+			if (i == ARRAY_SIZE(clk_sys_rates))
+				return -EINVAL;
+
 		} else {
 			new_sysclk = 12288000;
 		}