[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>
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 8d94325..a2757fc 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -451,6 +451,7 @@
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 f1d5f7a..9a174fb 100644
--- a/sound/core/pcm_memory.c
+++ b/sound/core/pcm_memory.c
@@ -204,6 +204,7 @@
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);
diff --git a/sound/pci/ca0106/ca0106_proc.c b/sound/pci/ca0106/ca0106_proc.c
index afb7114..0bc1d78 100644
--- a/sound/pci/ca0106/ca0106_proc.c
+++ b/sound/pci/ca0106/ca0106_proc.c
@@ -418,6 +418,7 @@
snd_info_set_text_ops(entry, emu, 1024, snd_ca0106_proc_reg_read32);
entry->c.text.write_size = 64;
entry->c.text.write = snd_ca0106_proc_reg_write32;
+ entry->mode |= S_IWUSR;
}
if(! snd_card_proc_new(emu->card, "ca0106_reg16", &entry))
snd_info_set_text_ops(entry, emu, 1024, snd_ca0106_proc_reg_read16);
@@ -427,6 +428,7 @@
snd_info_set_text_ops(entry, emu, 1024, snd_ca0106_proc_reg_read1);
entry->c.text.write_size = 64;
entry->c.text.write = snd_ca0106_proc_reg_write;
+ entry->mode |= S_IWUSR;
// entry->private_data = emu;
}
if(! snd_card_proc_new(emu->card, "ca0106_regs2", &entry))
diff --git a/sound/pci/emu10k1/emu10k1x.c b/sound/pci/emu10k1/emu10k1x.c
index 04ba637..f8d9233 100644
--- a/sound/pci/emu10k1/emu10k1x.c
+++ b/sound/pci/emu10k1/emu10k1x.c
@@ -1075,6 +1075,7 @@
snd_info_set_text_ops(entry, emu, 1024, snd_emu10k1x_proc_reg_read);
entry->c.text.write_size = 64;
entry->c.text.write = snd_emu10k1x_proc_reg_write;
+ entry->mode |= S_IWUSR;
entry->private_data = emu;
}
diff --git a/sound/pci/emu10k1/emuproc.c b/sound/pci/emu10k1/emuproc.c
index 356fb71..cc22707 100644
--- a/sound/pci/emu10k1/emuproc.c
+++ b/sound/pci/emu10k1/emuproc.c
@@ -527,26 +527,31 @@
snd_info_set_text_ops(entry, emu, 1024, snd_emu_proc_io_reg_read);
entry->c.text.write_size = 64;
entry->c.text.write = snd_emu_proc_io_reg_write;
+ entry->mode |= S_IWUSR;
}
if (! snd_card_proc_new(emu->card, "ptr_regs00a", &entry)) {
snd_info_set_text_ops(entry, emu, 65536, snd_emu_proc_ptr_reg_read00a);
entry->c.text.write_size = 64;
entry->c.text.write = snd_emu_proc_ptr_reg_write00;
+ entry->mode |= S_IWUSR;
}
if (! snd_card_proc_new(emu->card, "ptr_regs00b", &entry)) {
snd_info_set_text_ops(entry, emu, 65536, snd_emu_proc_ptr_reg_read00b);
entry->c.text.write_size = 64;
entry->c.text.write = snd_emu_proc_ptr_reg_write00;
+ entry->mode |= S_IWUSR;
}
if (! snd_card_proc_new(emu->card, "ptr_regs20a", &entry)) {
snd_info_set_text_ops(entry, emu, 65536, snd_emu_proc_ptr_reg_read20a);
entry->c.text.write_size = 64;
entry->c.text.write = snd_emu_proc_ptr_reg_write20;
+ entry->mode |= S_IWUSR;
}
if (! snd_card_proc_new(emu->card, "ptr_regs20b", &entry)) {
snd_info_set_text_ops(entry, emu, 65536, snd_emu_proc_ptr_reg_read20b);
entry->c.text.write_size = 64;
entry->c.text.write = snd_emu_proc_ptr_reg_write20;
+ entry->mode |= S_IWUSR;
}
#endif