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authorJulia Lawall <Julia.Lawall@lip6.fr>2016-09-02 00:13:14 +0200
committerTakashi Iwai <tiwai@suse.de>2016-09-02 11:51:03 +0200
commit8c91d7d09e3cd52d5d409ba05e8eb9be0f6a2349 (patch)
treed2914070028805b8206a9ee9d9f0fe4f14c69f3e /sound/pci/bt87x.c
parentbc9a910b15d0cc6f2f540fc0446381d47f215fc7 (diff)
ALSA: bt87x: 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> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/bt87x.c')
-rw-r--r--sound/pci/bt87x.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
index 5925b7170e25..f2c0709d7441 100644
--- a/sound/pci/bt87x.c
+++ b/sound/pci/bt87x.c
@@ -550,7 +550,7 @@ static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream)
return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes);
}
-static struct snd_pcm_ops snd_bt87x_pcm_ops = {
+static const struct snd_pcm_ops snd_bt87x_pcm_ops = {
.open = snd_bt87x_pcm_open,
.close = snd_bt87x_close,
.ioctl = snd_pcm_lib_ioctl,