ALSA: hda-codec - Avoid zero NID in line_out_pins[] of STAC codecs

patch c480f79b in mainline

[ALSA] hda-codec - Avoid zero NID in line_out_pins[] of STAC codecs

The STAC codes adds line_out_pins[] for shared mic/line-inputs accordingly.
But, the current code may give a hole with NID=0 in some setting, which
results in an error at probe.  This patch fixes the problem.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

sound/pci/hda/patch_sigmatel.c

@@ -1182,7 +1182,8 @@ static int stac92xx_add_dyn_out_pins(struct hda_codec *codec, struct auto_pin_cf
 	case 3:
 		/* add line-in as side */
 		if (cfg->input_pins[AUTO_PIN_LINE] && num_dacs > 3) {
-			cfg->line_out_pins[3] = cfg->input_pins[AUTO_PIN_LINE];
+			cfg->line_out_pins[cfg->line_outs] =
+				cfg->input_pins[AUTO_PIN_LINE];
 			spec->line_switch = 1;
 			cfg->line_outs++;
 		}
@@ -1190,12 +1191,14 @@ static int stac92xx_add_dyn_out_pins(struct hda_codec *codec, struct auto_pin_cf
 	case 2:
 		/* add line-in as clfe and mic as side */
 		if (cfg->input_pins[AUTO_PIN_LINE] && num_dacs > 2) {
-			cfg->line_out_pins[2] = cfg->input_pins[AUTO_PIN_LINE];
+			cfg->line_out_pins[cfg->line_outs] =
+				cfg->input_pins[AUTO_PIN_LINE];
 			spec->line_switch = 1;
 			cfg->line_outs++;
 		}
 		if (cfg->input_pins[AUTO_PIN_MIC] && num_dacs > 3) {
-			cfg->line_out_pins[3] = cfg->input_pins[AUTO_PIN_MIC];
+			cfg->line_out_pins[cfg->line_outs] =
+				cfg->input_pins[AUTO_PIN_MIC];
 			spec->mic_switch = 1;
 			cfg->line_outs++;
 		}
@@ -1203,12 +1206,14 @@ static int stac92xx_add_dyn_out_pins(struct hda_codec *codec, struct auto_pin_cf
 	case 1:
 		/* add line-in as surr and mic as clfe */
 		if (cfg->input_pins[AUTO_PIN_LINE] && num_dacs > 1) {
-			cfg->line_out_pins[1] = cfg->input_pins[AUTO_PIN_LINE];
+			cfg->line_out_pins[cfg->line_outs] =
+				cfg->input_pins[AUTO_PIN_LINE];
 			spec->line_switch = 1;
 			cfg->line_outs++;
 		}
 		if (cfg->input_pins[AUTO_PIN_MIC] && num_dacs > 2) {
-			cfg->line_out_pins[2] = cfg->input_pins[AUTO_PIN_MIC];
+			cfg->line_out_pins[cfg->line_outs] =
+				cfg->input_pins[AUTO_PIN_MIC];
 			spec->mic_switch = 1;
 			cfg->line_outs++;
 		}