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ALSA: drivers: constify snd_pcm_ops structures

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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>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Arvind Yadav 2017-08-18 13:15:12 +05:30 committed by Takashi Iwai
parent 1086373713
commit f95925829b
2 changed files with 4 additions and 4 deletions
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4
sound/drivers/aloop.c
View File

@ -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 struct snd_pcm_ops loopback_playback_ops = {
.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,

4
sound/drivers/ml403-ac97cr.c
View File

@ -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 struct snd_pcm_ops snd_ml403_ac97cr_playback_ops = {
.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,