[ALSA] Fix permissions in some /proc files

PCM Midlevel,CA0106 driver,EMU10K1/EMU10K2 driver
Fix by Guillaume Chazarain <guichaz@yahoo.fr>:

Some tunables in /proc have a write() function, but as their
permission does not reflect it, it can be confusing to the user.

So here is a patch that corrects the mode of those files. Note that I
have only tested the 'xrun_debug' entry.

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

2 files changed, 2 insertions, 0 deletions

diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 8d94325529a8..a2757fcec1f0 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -451,6 +451,7 @@ static int snd_pcm_stream_proc_init(snd_pcm_str_t *pstr)
                 entry->c.text.read = snd_pcm_xrun_debug_read;
                 entry->c.text.write_size = 64;
                 entry->c.text.write = snd_pcm_xrun_debug_write;
+                entry->mode |= S_IWUSR;
                 entry->private_data = pstr;
                 if (snd_info_register(entry) < 0) {
                         snd_info_free_entry(entry);
diff --git a/sound/core/pcm_memory.c b/sound/core/pcm_memory.c
index f1d5f7a6ee0c..9a174fb96565 100644
--- a/sound/core/pcm_memory.c
+++ b/sound/core/pcm_memory.c
@@ -204,6 +204,7 @@ static int snd_pcm_lib_preallocate_pages1(snd_pcm_substream_t *substream,
                 entry->c.text.read = snd_pcm_lib_preallocate_proc_read;
                 entry->c.text.write_size = 64;
                 entry->c.text.write = snd_pcm_lib_preallocate_proc_write;
+                entry->mode |= S_IWUSR;
                 entry->private_data = substream;
                 if (snd_info_register(entry) < 0) {
                         snd_info_free_entry(entry);