2017-08-09 07:53:04

by Arvind Yadav

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Subject: [PATCH] staging: bcm2835-audio: constify snd_pcm_ops structures

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 <[email protected]>
---
drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
index 3637ddf..1bf34ce 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
@@ -438,7 +438,7 @@ static int snd_bcm2835_pcm_lib_ioctl(struct snd_pcm_substream *substream,
}

/* operators */
-static struct snd_pcm_ops snd_bcm2835_playback_ops = {
+static const struct snd_pcm_ops snd_bcm2835_playback_ops = {
.open = snd_bcm2835_playback_open,
.close = snd_bcm2835_playback_close,
.ioctl = snd_bcm2835_pcm_lib_ioctl,
@@ -450,7 +450,7 @@ static int snd_bcm2835_pcm_lib_ioctl(struct snd_pcm_substream *substream,
.ack = snd_bcm2835_pcm_ack,
};

-static struct snd_pcm_ops snd_bcm2835_playback_spdif_ops = {
+static const struct snd_pcm_ops snd_bcm2835_playback_spdif_ops = {
.open = snd_bcm2835_playback_spdif_open,
.close = snd_bcm2835_playback_close,
.ioctl = snd_bcm2835_pcm_lib_ioctl,
--
1.9.1