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| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2016-09-02 01:13:10 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2016-09-02 12:49:10 +0300 |
| commit | 6769e988b0062bf8d63d35b0fdbb47b385dd3252 (patch) | |
| tree | a45f07972e30404bb3f489a9631fbe31b8765ac8 /sound/pci/maestro3.c | |
| parent | 9d5262ae9b52d5dd96a4c5bd1b683570b84a011e (diff) | |
| download | linux-6769e988b0062bf8d63d35b0fdbb47b385dd3252.tar.xz | |
ALSA: constify snd_pcm_ops structures
Check for snd_pcm_ops structures that are only stored in the ops field of a
snd_soc_platform_driver structure or passed as the third argument to
snd_pcm_set_ops. The corresponding field or parameter is declared const,
so snd_pcm_ops structures that have this property can be declared as const
also.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct snd_pcm_ops i@p = { ... };
@ok1@
identifier r.i;
struct snd_soc_platform_driver e;
position p;
@@
e.ops = &i@p;
@ok2@
identifier r.i;
expression e1, e2;
position p;
@@
snd_pcm_set_ops(e1, e2, &i@p)
@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
struct snd_pcm_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct snd_pcm_ops i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/maestro3.c')
| -rw-r--r-- | sound/pci/maestro3.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c index 17ae92613de4..cafea6dc5c01 100644 --- a/sound/pci/maestro3.c +++ b/sound/pci/maestro3.c @@ -1834,7 +1834,7 @@ snd_m3_capture_close(struct snd_pcm_substream *subs) * create pcm instance */ -static struct snd_pcm_ops snd_m3_playback_ops = { +static const struct snd_pcm_ops snd_m3_playback_ops = { .open = snd_m3_playback_open, .close = snd_m3_playback_close, .ioctl = snd_pcm_lib_ioctl, @@ -1845,7 +1845,7 @@ static struct snd_pcm_ops snd_m3_playback_ops = { .pointer = snd_m3_pcm_pointer, }; -static struct snd_pcm_ops snd_m3_capture_ops = { +static const struct snd_pcm_ops snd_m3_capture_ops = { .open = snd_m3_capture_open, .close = snd_m3_capture_close, .ioctl = snd_pcm_lib_ioctl, |