ALSA: pcm: Drop unused snd_pcm_substream.file field

It's assigned but nowhere used.  Let's remove it.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 2c30c1a..a20d3a4 100644 (file)
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -470,7 +470,6 @@ struct snd_pcm_substream {
        struct snd_pcm_group self_group;        /* fake group for non linked substream (with substream lock inside) */
        struct snd_pcm_group *group;            /* pointer to current group */
        /* -- assigned files -- */
-       void *file;
        int ref_count;
        atomic_t mmap_count;
        unsigned int f_flags;

diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 467039b..d5b0d7b 100644 (file)
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -2427,7 +2427,6 @@ static int snd_pcm_oss_open_file(struct file *file,
                }
 
                pcm_oss_file->streams[idx] = substream;
-               substream->file = pcm_oss_file;
                snd_pcm_oss_init_substream(substream, &setup[idx], minor);
        }
        

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 26afb6b..63640d3 100644 (file)
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -2452,10 +2452,8 @@ static int snd_pcm_open_file(struct file *file,
                return -ENOMEM;
        }
        pcm_file->substream = substream;
-       if (substream->ref_count == 1) {
-               substream->file = pcm_file;
+       if (substream->ref_count == 1)
                substream->pcm_release = pcm_release_private;
-       }
        file->private_data = pcm_file;
 
        return 0;