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>

diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 3e73d5c..768ea86 100644 (file)
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -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",