[ALSA] remove dead code

YMFPCI driver
This patch removes some dead code found by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/ymfpci/ymfpci_main.c

@@ -1421,17 +1421,15 @@ static snd_kcontrol_new_t snd_ymfpci_drec_source __devinitdata = {
 
 static int snd_ymfpci_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 {
-	unsigned int mask = 1;
-
 	switch (kcontrol->private_value) {
 	case YDSXGR_SPDIFOUTCTRL: break;
 	case YDSXGR_SPDIFINCTRL: break;
 	default: return -EINVAL;
 	}
-	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 	uinfo->count = 1;
 	uinfo->value.integer.min = 0;
-	uinfo->value.integer.max = mask;
+	uinfo->value.integer.max = 1;
 	return 0;
 }
 
@@ -1439,7 +1437,7 @@ static int snd_ymfpci_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t
 {
 	ymfpci_t *chip = snd_kcontrol_chip(kcontrol);
 	int reg = kcontrol->private_value;
-	unsigned int shift = 0, mask = 1, invert = 0;
+	unsigned int shift = 0, mask = 1;
 	
 	switch (kcontrol->private_value) {
 	case YDSXGR_SPDIFOUTCTRL: break;
@@ -1447,8 +1445,6 @@ static int snd_ymfpci_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t
 	default: return -EINVAL;
 	}
 	ucontrol->value.integer.value[0] = (snd_ymfpci_readl(chip, reg) >> shift) & mask;
-	if (invert)
-		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 	return 0;
 }
 
@@ -1456,7 +1452,7 @@ static int snd_ymfpci_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t
 {
 	ymfpci_t *chip = snd_kcontrol_chip(kcontrol);
 	int reg = kcontrol->private_value;
-	unsigned int shift = 0, mask = 1, invert = 0;
+	unsigned int shift = 0, mask = 1;
 	int change;
 	unsigned int val, oval;
 	
@@ -1466,8 +1462,6 @@ static int snd_ymfpci_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t
 	default: return -EINVAL;
 	}
 	val = (ucontrol->value.integer.value[0] & mask);
-	if (invert)
-		val = mask - val;
 	val <<= shift;
 	spin_lock_irq(&chip->reg_lock);
 	oval = snd_ymfpci_readl(chip, reg);
@@ -1487,14 +1481,13 @@ static int snd_ymfpci_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t
 static int snd_ymfpci_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 {
 	unsigned int reg = kcontrol->private_value;
-	unsigned int mask = 16383;
 
 	if (reg < 0x80 || reg >= 0xc0)
 		return -EINVAL;
-	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 	uinfo->count = 2;
 	uinfo->value.integer.min = 0;
-	uinfo->value.integer.max = mask;
+	uinfo->value.integer.max = 16383;
 	return 0;
 }
 
@@ -1502,7 +1495,7 @@ static int snd_ymfpci_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t
 {
 	ymfpci_t *chip = snd_kcontrol_chip(kcontrol);
 	unsigned int reg = kcontrol->private_value;
-	unsigned int shift_left = 0, shift_right = 16, mask = 16383, invert = 0;
+	unsigned int shift_left = 0, shift_right = 16, mask = 16383;
 	unsigned int val;
 	
 	if (reg < 0x80 || reg >= 0xc0)
@@ -1512,10 +1505,6 @@ static int snd_ymfpci_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t
 	spin_unlock_irq(&chip->reg_lock);
 	ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
 	ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
-	if (invert) {
-		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
-		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
-	}
 	return 0;
 }
 
@@ -1523,7 +1512,7 @@ static int snd_ymfpci_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t
 {
 	ymfpci_t *chip = snd_kcontrol_chip(kcontrol);
 	unsigned int reg = kcontrol->private_value;
-	unsigned int shift_left = 0, shift_right = 16, mask = 16383, invert = 0;
+	unsigned int shift_left = 0, shift_right = 16, mask = 16383;
 	int change;
 	unsigned int val1, val2, oval;
 	
@@ -1531,10 +1520,6 @@ static int snd_ymfpci_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t
 		return -EINVAL;
 	val1 = ucontrol->value.integer.value[0] & mask;
 	val2 = ucontrol->value.integer.value[1] & mask;
-	if (invert) {
-		val1 = mask - val1;
-		val2 = mask - val2;
-	}
 	val1 <<= shift_left;
 	val2 <<= shift_right;
 	spin_lock_irq(&chip->reg_lock);