ALSA: Use a define for the number of jack switch types

This is intended to facilitate the merge of the two jack detection
mechanisms.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

2 files changed, 5 insertions, 2 deletions

diff --git a/include/sound/jack.h b/include/sound/jack.h
index 63c790742db4..58916573db58 100644
--- a/include/sound/jack.h
+++ b/include/sound/jack.h
@@ -53,6 +53,9 @@ enum snd_jack_types {
         SND_JACK_BTN_5          = 0x0200,
 };
 
+/* Keep in sync with definitions above */
+#define SND_JACK_SWITCH_TYPES 6
+
 struct snd_jack {
         struct input_dev *input_dev;
         int registered;
diff --git a/sound/core/jack.c b/sound/core/jack.c
index 26edf63b265f..471e1e3b0a99 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -25,7 +25,7 @@
 #include <sound/jack.h>
 #include <sound/core.h>
 
-static int jack_switch_types[] = {
+static int jack_switch_types[SND_JACK_SWITCH_TYPES] = {
         SW_HEADPHONE_INSERT,
         SW_MICROPHONE_INSERT,
         SW_LINEOUT_INSERT,
@@ -128,7 +128,7 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
 
         jack->type = type;
 
-        for (i = 0; i < ARRAY_SIZE(jack_switch_types); i++)
+        for (i = 0; i < SND_JACK_SWITCH_TYPES; i++)
                 if (type & (1 << i))
                         input_set_capability(jack->input_dev, EV_SW,
                                              jack_switch_types[i]);