From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Wed, 2 Mar 2011 18:18:24 +0000 (+0000)
Subject: ASoC: Check for a CODEC before dereferencing in DAPM
X-Git-Tag: upstream/snapshot3+hdmi~7307^2~1145^2~46
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=88e8b9a84b41be8ea37cf3bbe192e72f84747f66;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

ASoC: Check for a CODEC before dereferencing in DAPM

A CODEC pointer is optional (and is checked for in most contexts within
DAPM) - add checks to the few places where it was missed.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
---

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 8240ab8..570db88 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1517,7 +1517,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm,
 	char prefixed_source[80];
 	int ret = 0;
 
-	if (dapm->codec->name_prefix) {
+	if (dapm->codec && dapm->codec->name_prefix) {
 		snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s",
 			 dapm->codec->name_prefix, route->sink);
 		sink = prefixed_sink;
@@ -2167,14 +2167,14 @@ int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
 		return -ENOMEM;
 
 	name_len = strlen(widget->name) + 1;
-	if (dapm->codec->name_prefix)
+	if (dapm->codec && dapm->codec->name_prefix)
 		name_len += 1 + strlen(dapm->codec->name_prefix);
 	w->name = kmalloc(name_len, GFP_KERNEL);
 	if (w->name == NULL) {
 		kfree(w);
 		return -ENOMEM;
 	}
-	if (dapm->codec->name_prefix)
+	if (dapm->codec && dapm->codec->name_prefix)
 		snprintf(w->name, name_len, "%s %s",
 			dapm->codec->name_prefix, widget->name);
 	else