From ad610120dc86929001a2c58838959b0496f4d20f Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Thu, 5 Apr 2012 10:57:51 -0300
Subject: [PATCH] --- yaml --- r: 298948 b: refs/heads/master c:
 66bb2a7f835a28a9405f3f6571fbf34156e6bc1e h: refs/heads/master v: v3

---
 [refs]                           | 2 +-
 trunk/sound/soc/imx/imx-audmux.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 2d7548be0fad..f6a81859ab4e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 00792ac4e0d88e82fc489a5e1c4d4435125a301c
+refs/heads/master: 66bb2a7f835a28a9405f3f6571fbf34156e6bc1e
diff --git a/trunk/sound/soc/imx/imx-audmux.c b/trunk/sound/soc/imx/imx-audmux.c
index 912a342ef776..0fe66c3dde12 100644
--- a/trunk/sound/soc/imx/imx-audmux.c
+++ b/trunk/sound/soc/imx/imx-audmux.c
@@ -79,6 +79,9 @@ static ssize_t audmux_read_file(struct file *file, char __user *user_buf,
 	if (!buf)
 		return -ENOMEM;
 
+	if (!audmux_base)
+		return -ENOSYS;
+
 	if (audmux_clk)
 		clk_prepare_enable(audmux_clk);