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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-03-02 18:18:24 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-03-03 11:15:03 +0000
commit88e8b9a84b41be8ea37cf3bbe192e72f84747f66 (patch)
tree5a86710db573932a0308c3aefa900b6233362c64 /sound/soc/soc-dapm.c
parent12ea2c782e8bd98bcbf88165b2fd1610d1b9a81d (diff)
downloadop-kernel-dev-88e8b9a84b41be8ea37cf3bbe192e72f84747f66.zip
op-kernel-dev-88e8b9a84b41be8ea37cf3bbe192e72f84747f66.tar.gz
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>
Diffstat (limited to 'sound/soc/soc-dapm.c')
-rw-r--r--sound/soc/soc-dapm.c6
1 files changed, 3 insertions, 3 deletions
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
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