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-rw-r--r--include/sound/pcm.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 5dd8ea4..9ce7463 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -1015,4 +1015,6 @@ static inline void snd_pcm_limit_isa_dma_size(int dma, size_t *max)
(IEC958_AES1_CON_PCM_CODER<<8)|\
(IEC958_AES3_CON_FS_48000<<24))
+#define PCM_RUNTIME_CHECK(sub) snd_BUG_ON(!(sub) || !(sub)->runtime)
+
#endif /* __SOUND_PCM_H */