diff --git a/sound/core/jack.c b/sound/core/jack.c
index 68b098538827..b13b22e993c0 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -366,7 +366,6 @@ void snd_jack_report(struct snd_jack *jack, int status)
 {
 	struct snd_jack_kctl *jack_kctl;
 #ifdef CONFIG_SND_JACK_INPUT_DEV
-	struct input_dev *idev;
 	int i;
 #endif
 
@@ -385,14 +384,14 @@ void snd_jack_report(struct snd_jack *jack, int status)
 		int testbit = SND_JACK_BTN_0 >> i;
 
 		if (jack->type & testbit)
-			input_report_key(idev, jack->key[i],
+			input_report_key(jack->input_dev, jack->key[i],
 					 status & testbit);
 	}
 
 	for (i = 0; i < ARRAY_SIZE(jack_switch_types); i++) {
 		int testbit = 1 << i;
 		if (jack->type & testbit)
-			input_report_switch(idev,
+			input_report_switch(jack->input_dev,
 					    jack_switch_types[i],
 					    status & testbit);
 	}