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ALSA: hda/ca0132 - use ARRAY_SIZE 

Using the ARRAY_SIZE macro improves the readability of the code.

Found with Coccinelle with the following semantic patch:
@r depends on (org || report)@
type T;
T[] E;
position p;
@@
(
 (sizeof(E)@p /sizeof(*E))
|
 (sizeof(E)@p /sizeof(E[...]))
|
 (sizeof(E)@p /sizeof(T))
)

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Jérémy Lefaure 2017-10-12 22:36:31 -04:00 committed by Takashi Iwai
parent 8ed5d192c0
commit a9291f461d
1 changed files with 3 additions and 5 deletions
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8
sound/pci/hda/patch_ca0132.c
View File

@ -27,6 +27,7 @@
#include <linux/mutex.h>
#include <linux/module.h>
#include <linux/firmware.h>
#include <linux/kernel.h>
#include <sound/core.h>
#include "hda_codec.h"
#include "hda_local.h"
@ -3605,8 +3606,7 @@ static int ca0132_vnode_switch_set(struct snd_kcontrol *kcontrol,
static int ca0132_voicefx_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
unsigned int items = sizeof(ca0132_voicefx_presets)
/ sizeof(struct ct_voicefx_preset);
unsigned int items = ARRAY_SIZE(ca0132_voicefx_presets);
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
@ -3635,10 +3635,8 @@ static int ca0132_voicefx_put(struct snd_kcontrol *kcontrol,
struct ca0132_spec *spec = codec->spec;
int i, err = 0;
int sel = ucontrol->value.enumerated.item[0];
unsigned int items = sizeof(ca0132_voicefx_presets)
/ sizeof(struct ct_voicefx_preset);
if (sel >= items)
if (sel >= ARRAY_SIZE(ca0132_voicefx_presets))
return 0;
codec_dbg(codec, "ca0132_voicefx_put: sel=%d, preset=%s\n",