linux-kernel - [PATCH 4/9] ALSA: gus: constify snd_pcm

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Message-Id: <1502452687-8202-5-git-send-email-arvind.yadav.cs@gmail.com>
Date:   Fri, 11 Aug 2017 17:28:02 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     perex@...ex.cz, tiwai@...e.com
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/9] ALSA: gus: 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 <arvind.yadav.cs@...il.com>
---
 sound/isa/gus/gus_pcm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/isa/gus/gus_pcm.c b/sound/isa/gus/gus_pcm.c
index 6b3da01..36e852f 100644
--- a/sound/isa/gus/gus_pcm.c
+++ b/sound/isa/gus/gus_pcm.c
@@ -842,7 +842,7 @@ static int snd_gf1_pcm_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_
 	.put = snd_gf1_pcm_volume_put
 };
 
-static struct snd_pcm_ops snd_gf1_pcm_playback_ops = {
+static const struct snd_pcm_ops snd_gf1_pcm_playback_ops = {
 	.open =		snd_gf1_pcm_playback_open,
 	.close =	snd_gf1_pcm_playback_close,
 	.ioctl =	snd_pcm_lib_ioctl,
@@ -856,7 +856,7 @@ static int snd_gf1_pcm_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_
 	.fill_silence =	snd_gf1_pcm_playback_silence,
 };
 
-static struct snd_pcm_ops snd_gf1_pcm_capture_ops = {
+static const struct snd_pcm_ops snd_gf1_pcm_capture_ops = {
 	.open =		snd_gf1_pcm_capture_open,
 	.close =	snd_gf1_pcm_capture_close,
 	.ioctl =	snd_pcm_lib_ioctl,
-- 
1.9.1