[LLC]: Fix double receive of SKB.

[linux-2.6] / sound / core / pcm_memory.c

diff --git a/sound/core/pcm_memory.c b/sound/core/pcm_memory.c
index d37bcb76188482c4b9acb66c6388530117c293f3..428f8c169ee15406a7ad6c3d2bd8b90cba5b75f6 100644 (file)
--- a/sound/core/pcm_memory.c
+++ b/sound/core/pcm_memory.c
@@ -100,10 +100,10 @@ static void snd_pcm_lib_preallocate_dma_free(struct snd_pcm_substream *substream
 int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream)
 {
        snd_pcm_lib_preallocate_dma_free(substream);
-       if (substream->proc_prealloc_entry) {
-               snd_info_unregister(substream->proc_prealloc_entry);
-               substream->proc_prealloc_entry = NULL;
-       }
+#ifdef CONFIG_SND_VERBOSE_PROCFS
+       snd_info_unregister(substream->proc_prealloc_entry);
+       substream->proc_prealloc_entry = NULL;
+#endif
        return 0;
 }
 
@@ -126,6 +126,7 @@ int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm)
        return 0;
 }
 
+#ifdef CONFIG_SND_VERBOSE_PROCFS
 /*
  * read callback for prealloc proc file
  *
@@ -185,20 +186,10 @@ static void snd_pcm_lib_preallocate_proc_write(struct snd_info_entry *entry,
        }
 }
 
-/*
- * pre-allocate the buffer and create a proc file for the substream
- */
-static int snd_pcm_lib_preallocate_pages1(struct snd_pcm_substream *substream,
-                                         size_t size, size_t max)
+static inline void preallocate_info_init(struct snd_pcm_substream *substream)
 {
        struct snd_info_entry *entry;
 
-       if (size > 0 && preallocate_dma && substream->number < maximum_substreams)
-               preallocate_pcm_pages(substream, size);
-
-       if (substream->dma_buffer.bytes > 0)
-               substream->buffer_bytes_max = substream->dma_buffer.bytes;
-       substream->dma_max = max;
        if ((entry = snd_info_create_card_entry(substream->pcm->card, "prealloc", substream->proc_root)) != NULL) {
                entry->c.text.read_size = 64;
                entry->c.text.read = snd_pcm_lib_preallocate_proc_read;
@@ -212,6 +203,26 @@ static int snd_pcm_lib_preallocate_pages1(struct snd_pcm_substream *substream,
                }
        }
        substream->proc_prealloc_entry = entry;
+}
+
+#else /* !CONFIG_SND_VERBOSE_PROCFS */
+#define preallocate_info_init(s)
+#endif /* CONFIG_SND_VERBOSE_PROCFS */
+
+/*
+ * pre-allocate the buffer and create a proc file for the substream
+ */
+static int snd_pcm_lib_preallocate_pages1(struct snd_pcm_substream *substream,
+                                         size_t size, size_t max)
+{
+
+       if (size > 0 && preallocate_dma && substream->number < maximum_substreams)
+               preallocate_pcm_pages(substream, size);
+
+       if (substream->dma_buffer.bytes > 0)
+               substream->buffer_bytes_max = substream->dma_buffer.bytes;
+       substream->dma_max = max;
+       preallocate_info_init(substream);
        return 0;
 }