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-rw-r--r--include/sound/ac97_codec.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
index 2857cf0472d..d11f34832a9 100644
--- a/include/sound/ac97_codec.h
+++ b/include/sound/ac97_codec.h
@@ -527,6 +527,8 @@ struct _snd_ac97 {
struct device dev;
};
+#define to_ac97_t(d) container_of(d, struct _snd_ac97, dev)
+
/* conditions */
static inline int ac97_is_audio(ac97_t * ac97)
{