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Subject[PATCH 04/13] ALSA: drivers: constify snd_pcm_ops structures
Date
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
sound/drivers/aloop.c | 4 ++--
sound/drivers/ml403-ac97cr.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
index 54f348a..f9f0edf 100644
--- a/sound/drivers/aloop.c
+++ b/sound/drivers/aloop.c
@@ -750,7 +750,7 @@ static int loopback_close(struct snd_pcm_substream *substream)
return 0;
}

-static struct snd_pcm_ops loopback_playback_ops = {
+static const struct snd_pcm_ops loopback_playback_ops = {
.open = loopback_open,
.close = loopback_close,
.ioctl = snd_pcm_lib_ioctl,
@@ -763,7 +763,7 @@ static int loopback_close(struct snd_pcm_substream *substream)
.mmap = snd_pcm_lib_mmap_vmalloc,
};

-static struct snd_pcm_ops loopback_capture_ops = {
+static const struct snd_pcm_ops loopback_capture_ops = {
.open = loopback_open,
.close = loopback_close,
.ioctl = snd_pcm_lib_ioctl,
diff --git a/sound/drivers/ml403-ac97cr.c b/sound/drivers/ml403-ac97cr.c
index bdcb572..8195ae8 100644
--- a/sound/drivers/ml403-ac97cr.c
+++ b/sound/drivers/ml403-ac97cr.c
@@ -759,7 +759,7 @@ static int snd_ml403_ac97cr_capture_close(struct snd_pcm_substream *substream)
return 0;
}

-static struct snd_pcm_ops snd_ml403_ac97cr_playback_ops = {
+static const struct snd_pcm_ops snd_ml403_ac97cr_playback_ops = {
.open = snd_ml403_ac97cr_playback_open,
.close = snd_ml403_ac97cr_playback_close,
.ioctl = snd_pcm_lib_ioctl,
@@ -770,7 +770,7 @@ static int snd_ml403_ac97cr_capture_close(struct snd_pcm_substream *substream)
.pointer = snd_ml403_ac97cr_pcm_pointer,
};

-static struct snd_pcm_ops snd_ml403_ac97cr_capture_ops = {
+static const struct snd_pcm_ops snd_ml403_ac97cr_capture_ops = {
.open = snd_ml403_ac97cr_capture_open,
.close = snd_ml403_ac97cr_capture_close,
.ioctl = snd_pcm_lib_ioctl,
--
1.9.1
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