ALSA: hda - Use generic array helpers

Use generic array helpers to simplify array handling in snd-hda-intel.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 30 insertions, 41 deletions

diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 63e4871e5d8f..760e14ae3bff 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -53,9 +53,6 @@
 #define AMP_VAL_IDX_SHIFT	19
 #define AMP_VAL_IDX_MASK	(0x0f<<19)
 
-#define NUM_CONTROL_ALLOC	32
-#define NUM_VERB_ALLOC		32
-
 /* Pin Widget NID */
 #define VT1708_HP_NID		0x13
 #define VT1708_DIGOUT_NID	0x14
@@ -227,8 +224,7 @@ struct via_spec {
 
 	/* dynamic controls, init_verbs and input_mux */
 	struct auto_pin_cfg autocfg;
-	unsigned int num_kctl_alloc, num_kctl_used;
-	struct snd_kcontrol_new *kctl_alloc;
+	struct snd_array kctls;
 	struct hda_input_mux private_imux[2];
 	hda_nid_t private_dac_nids[AUTO_CFG_MAX_OUTS];
 
@@ -272,33 +268,31 @@ static int via_add_control(struct via_spec *spec, int type, const char *name,
 {
 	struct snd_kcontrol_new *knew;
 
-	if (spec->num_kctl_used >= spec->num_kctl_alloc) {
-		int num = spec->num_kctl_alloc + NUM_CONTROL_ALLOC;
-
-		/* array + terminator */
-		knew = kcalloc(num + 1, sizeof(*knew), GFP_KERNEL);
-		if (!knew)
-			return -ENOMEM;
-		if (spec->kctl_alloc) {
-			memcpy(knew, spec->kctl_alloc,
-			       sizeof(*knew) * spec->num_kctl_alloc);
-			kfree(spec->kctl_alloc);
-		}
-		spec->kctl_alloc = knew;
-		spec->num_kctl_alloc = num;
-	}
-
-	knew = &spec->kctl_alloc[spec->num_kctl_used];
+	snd_array_init(&spec->kctls, sizeof(*knew), 32);
+	knew = snd_array_new(&spec->kctls);
+	if (!knew)
+		return -ENOMEM;
 	*knew = vt1708_control_templates[type];
 	knew->name = kstrdup(name, GFP_KERNEL);
-
 	if (!knew->name)
 		return -ENOMEM;
 	knew->private_value = val;
-	spec->num_kctl_used++;
 	return 0;
 }
 
+static void via_free_kctls(struct hda_codec *codec)
+{
+	struct via_spec *spec = codec->spec;
+
+	if (spec->kctls.list) {
+		struct snd_kcontrol_new *kctl = spec->kctls.list;
+		int i;
+		for (i = 0; i < spec->kctls.used; i++)
+			kfree(kctl[i].name);
+	}
+	snd_array_free(&spec->kctls);
+}
+
 /* create input playback/capture controls for the given pin */
 static int via_new_analog_input(struct via_spec *spec, hda_nid_t pin,
 				const char *ctlname, int idx, int mix_nid)
@@ -896,6 +890,7 @@ static int via_build_controls(struct hda_codec *codec)
 		if (err < 0)
 			return err;
 	}
+	via_free_kctls(codec); /* no longer needed */
 	return 0;
 }
 
@@ -941,17 +936,11 @@ static int via_build_pcms(struct hda_codec *codec)
 static void via_free(struct hda_codec *codec)
 {
 	struct via_spec *spec = codec->spec;
-	unsigned int i;
 
 	if (!spec)
 		return;
 
-	if (spec->kctl_alloc) {
-		for (i = 0; i < spec->num_kctl_used; i++)
-			kfree(spec->kctl_alloc[i].name);
-		kfree(spec->kctl_alloc);
-	}
-
+	via_free_kctls(codec);
 	kfree(codec->spec);
 }
 
@@ -1373,8 +1362,8 @@ static int vt1708_parse_auto_config(struct hda_codec *codec)
 	if (spec->autocfg.dig_in_pin)
 		spec->dig_in_nid = VT1708_DIGIN_NID;
 
-	if (spec->kctl_alloc)
-		spec->mixers[spec->num_mixers++] = spec->kctl_alloc;
+	if (spec->kctls.list)
+		spec->mixers[spec->num_mixers++] = spec->kctls.list;
 
 	spec->init_verbs[spec->num_iverbs++] = vt1708_volume_init_verbs;
 
@@ -1846,8 +1835,8 @@ static int vt1709_parse_auto_config(struct hda_codec *codec)
 	if (spec->autocfg.dig_in_pin)
 		spec->dig_in_nid = VT1709_DIGIN_NID;
 
-	if (spec->kctl_alloc)
-		spec->mixers[spec->num_mixers++] = spec->kctl_alloc;
+	if (spec->kctls.list)
+		spec->mixers[spec->num_mixers++] = spec->kctls.list;
 
 	spec->input_mux = &spec->private_imux[0];
 
@@ -2390,8 +2379,8 @@ static int vt1708B_parse_auto_config(struct hda_codec *codec)
 	if (spec->autocfg.dig_in_pin)
 		spec->dig_in_nid = VT1708B_DIGIN_NID;
 
-	if (spec->kctl_alloc)
-		spec->mixers[spec->num_mixers++] = spec->kctl_alloc;
+	if (spec->kctls.list)
+		spec->mixers[spec->num_mixers++] = spec->kctls.list;
 
 	spec->input_mux = &spec->private_imux[0];
 
@@ -2855,8 +2844,8 @@ static int vt1708S_parse_auto_config(struct hda_codec *codec)
 
 	spec->extra_dig_out_nid = 0x15;
 
-	if (spec->kctl_alloc)
-		spec->mixers[spec->num_mixers++] = spec->kctl_alloc;
+	if (spec->kctls.list)
+		spec->mixers[spec->num_mixers++] = spec->kctls.list;
 
 	spec->input_mux = &spec->private_imux[0];
 
@@ -3174,8 +3163,8 @@ static int vt1702_parse_auto_config(struct hda_codec *codec)
 
 	spec->extra_dig_out_nid = 0x1B;
 
-	if (spec->kctl_alloc)
-		spec->mixers[spec->num_mixers++] = spec->kctl_alloc;
+	if (spec->kctls.list)
+		spec->mixers[spec->num_mixers++] = spec->kctls.list;
 
 	spec->input_mux = &spec->private_imux[0];