[ALSA] Fix Oops at rmmod with CONFIG_SND_VERBOSE_PROCFS=n

Fixed Oops at rmmod with CONFIG_SND_VERBOSE_PROCFS=n.
Add ifdef to struct fields for optimization and better compile
checks.

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

6 files changed, 20 insertions, 12 deletions

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index df70e7592ab5..373425895faa 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -374,12 +374,14 @@ struct snd_pcm_substream {
         /* -- OSS things -- */
         struct snd_pcm_oss_substream oss;
 #endif
+#ifdef CONFIG_SND_VERBOSE_PROCFS
         struct snd_info_entry *proc_root;
         struct snd_info_entry *proc_info_entry;
         struct snd_info_entry *proc_hw_params_entry;
         struct snd_info_entry *proc_sw_params_entry;
         struct snd_info_entry *proc_status_entry;
         struct snd_info_entry *proc_prealloc_entry;
+#endif
         /* misc flags */
         unsigned int no_mmap_ctrl: 1;
         unsigned int hw_opened: 1;
@@ -400,12 +402,14 @@ struct snd_pcm_str {
         struct snd_pcm_oss_stream oss;
 #endif
         struct snd_pcm_file *files;
+#ifdef CONFIG_SND_VERBOSE_PROCFS
         struct snd_info_entry *proc_root;
         struct snd_info_entry *proc_info_entry;
-#ifdef CONFIG_SND_DEBUG
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
         unsigned int xrun_debug;        /* 0 = disabled, 1 = verbose, 2 = stacktrace */
         struct snd_info_entry *proc_xrun_debug_entry;
 #endif
+#endif
 };
 
 struct snd_pcm {
diff --git a/include/sound/pcm_oss.h b/include/sound/pcm_oss.h
index 39df2baca18a..c854647b6f3c 100644
--- a/include/sound/pcm_oss.h
+++ b/include/sound/pcm_oss.h
@@ -75,7 +75,9 @@ struct snd_pcm_oss_substream {
 struct snd_pcm_oss_stream {
         struct snd_pcm_oss_setup *setup_list;   /* setup list */
         struct mutex setup_mutex;
+#ifdef CONFIG_SND_VERBOSE_PROCFS
         struct snd_info_entry *proc_entry;
+#endif
 };
 
 struct snd_pcm_oss {
diff --git a/sound/core/Kconfig b/sound/core/Kconfig
index f3a07fb2e690..4262a1c87731 100644
--- a/sound/core/Kconfig
+++ b/sound/core/Kconfig
@@ -142,7 +142,7 @@ config SND_SUPPORT_OLD_API
 
 config SND_VERBOSE_PROCFS
         bool "Verbose procfs contents"
-        depends on SND
+        depends on SND && PROC_FS
         default y
         help
           Say Y here to include code for verbose procfs contents (provides
@@ -175,7 +175,7 @@ config SND_DEBUG_DETECT
 config SND_PCM_XRUN_DEBUG
         bool "Enable PCM ring buffer overrun/underrun debugging"
         default n
-        depends on SND_DEBUG
+        depends on SND_DEBUG && SND_VERBOSE_PROCFS
         help
           Say Y to enable the PCM ring buffer overrun/underrun debugging.
           It is usually not required, but if you have trouble with
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index a7567b891791..ac990bf0b48f 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -2214,7 +2214,7 @@ static int snd_pcm_oss_mmap(struct file *file, struct vm_area_struct *area)
         return 0;
 }
 
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_SND_VERBOSE_PROCFS
 /*
  *  /proc interface
  */
@@ -2368,10 +2368,10 @@ static void snd_pcm_oss_proc_done(struct snd_pcm *pcm)
                 }
         }
 }
-#else /* !CONFIG_PROC_FS */
+#else /* !CONFIG_SND_VERBOSE_PROCFS */
 #define snd_pcm_oss_proc_init(pcm)
 #define snd_pcm_oss_proc_done(pcm)
-#endif /* CONFIG_PROC_FS */
+#endif /* CONFIG_SND_VERBOSE_PROCFS */
 
 /*
  *  ENTRY functions
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 48007a54c8b7..84b00038236d 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -142,7 +142,7 @@ static int snd_pcm_control_ioctl(struct snd_card *card,
         return -ENOIOCTLCMD;
 }
 
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_SND_VERBOSE_PROCFS)
+#ifdef CONFIG_SND_VERBOSE_PROCFS
 
 #define STATE(v) [SNDRV_PCM_STATE_##v] = #v
 #define STREAM(v) [SNDRV_PCM_STREAM_##v] = #v
@@ -599,12 +599,12 @@ static int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream)
         }
         return 0;
 }
-#else /* !CONFIG_PROC_FS */
+#else /* !CONFIG_SND_VERBOSE_PROCFS */
 static inline int snd_pcm_stream_proc_init(struct snd_pcm_str *pstr) { return 0; }
 static inline int snd_pcm_stream_proc_done(struct snd_pcm_str *pstr) { return 0; }
 static inline int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream) { return 0; }
 static inline int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream) { return 0; }
-#endif /* CONFIG_PROC_FS */
+#endif /* CONFIG_SND_VERBOSE_PROCFS */
 
 /**
  * snd_pcm_new_stream - create a new PCM stream
diff --git a/sound/core/pcm_memory.c b/sound/core/pcm_memory.c
index a0119ae67dcd..428f8c169ee1 100644
--- a/sound/core/pcm_memory.c
+++ b/sound/core/pcm_memory.c
@@ -100,8 +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);
+#ifdef CONFIG_SND_VERBOSE_PROCFS
         snd_info_unregister(substream->proc_prealloc_entry);
         substream->proc_prealloc_entry = NULL;
+#endif
         return 0;
 }
 
@@ -124,7 +126,7 @@ int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm)
         return 0;
 }
 
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_SND_VERBOSE_PROCFS
 /*
  * read callback for prealloc proc file
  *
@@ -203,9 +205,9 @@ static inline void preallocate_info_init(struct snd_pcm_substream *substream)
         substream->proc_prealloc_entry = entry;
 }
 
-#else /* !CONFIG_PROC_FS */
+#else /* !CONFIG_SND_VERBOSE_PROCFS */
 #define preallocate_info_init(s)
-#endif
+#endif /* CONFIG_SND_VERBOSE_PROCFS */
 
 /*
  * pre-allocate the buffer and create a proc file for the substream