[PATCH] ALSA: line6: make snd_pcm_ops const

From: Bhumika Goyal
Date: Wed Sep 27 2017 - 02:19:46 EST


Make these const as they are only passed to a const argument of the
function snd_pcm_set_ops in the file referencing them. Also, add const
to the declaration in the headers.

Structures found using Coccinelle and changes done by hand.

Signed-off-by: Bhumika Goyal <bhumirks@xxxxxxxxx>
---
sound/usb/line6/capture.c | 2 +-
sound/usb/line6/capture.h | 2 +-
sound/usb/line6/playback.c | 2 +-
sound/usb/line6/playback.h | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/usb/line6/capture.c b/sound/usb/line6/capture.c
index 7c81256..947d616 100644
--- a/sound/usb/line6/capture.c
+++ b/sound/usb/line6/capture.c
@@ -248,7 +248,7 @@ static int snd_line6_capture_close(struct snd_pcm_substream *substream)
}

/* capture operators */
-struct snd_pcm_ops snd_line6_capture_ops = {
+const struct snd_pcm_ops snd_line6_capture_ops = {
.open = snd_line6_capture_open,
.close = snd_line6_capture_close,
.ioctl = snd_pcm_lib_ioctl,
diff --git a/sound/usb/line6/capture.h b/sound/usb/line6/capture.h
index 890b21b..b67ccc3 100644
--- a/sound/usb/line6/capture.h
+++ b/sound/usb/line6/capture.h
@@ -17,7 +17,7 @@
#include "driver.h"
#include "pcm.h"

-extern struct snd_pcm_ops snd_line6_capture_ops;
+extern const struct snd_pcm_ops snd_line6_capture_ops;

extern void line6_capture_copy(struct snd_line6_pcm *line6pcm, char *fbuf,
int fsize);
diff --git a/sound/usb/line6/playback.c b/sound/usb/line6/playback.c
index 812d181..819e9b2 100644
--- a/sound/usb/line6/playback.c
+++ b/sound/usb/line6/playback.c
@@ -393,7 +393,7 @@ static int snd_line6_playback_close(struct snd_pcm_substream *substream)
}

/* playback operators */
-struct snd_pcm_ops snd_line6_playback_ops = {
+const struct snd_pcm_ops snd_line6_playback_ops = {
.open = snd_line6_playback_open,
.close = snd_line6_playback_close,
.ioctl = snd_pcm_lib_ioctl,
diff --git a/sound/usb/line6/playback.h b/sound/usb/line6/playback.h
index 51fce29..d8d3b8a 100644
--- a/sound/usb/line6/playback.h
+++ b/sound/usb/line6/playback.h
@@ -27,7 +27,7 @@
*/
#define USE_CLEAR_BUFFER_WORKAROUND 1

-extern struct snd_pcm_ops snd_line6_playback_ops;
+extern const struct snd_pcm_ops snd_line6_playback_ops;

extern int line6_create_audio_out_urbs(struct snd_line6_pcm *line6pcm);
extern int line6_submit_audio_out_all_urbs(struct snd_line6_pcm *line6pcm);
--
1.9.1