ALSA: azt2320: Allocate resources with device-managed APIs

This patch converts the resource management in ISA azt2320 driver with devres as a clean up. Each manual resource management is converted with the corresponding devres helper. The remove callback became superfluous and dropped. This should give no user-visible functional changes. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Takashi Iwai <[email protected]>
ambv · Jul 19, 2021 · 39c4f9a · 39c4f9a
1 parent 749cadc
commit 39c4f9a
Showing 1 changed file with 12 additions and 37 deletions.
diff --git a/sound/isa/azt2320.c b/sound/isa/azt2320.c
@@ -169,54 +169,42 @@ static int snd_card_azt2320_probe(int dev,
 	struct snd_wss *chip;
 	struct snd_opl3 *opl3;
 
-	error = snd_card_new(&pcard->card->dev,
-			     index[dev], id[dev], THIS_MODULE,
-			     sizeof(struct snd_card_azt2320), &card);
+	error = snd_devm_card_new(&pcard->card->dev,
+				  index[dev], id[dev], THIS_MODULE,
+				  sizeof(struct snd_card_azt2320), &card);
 	if (error < 0)
 		return error;
 	acard = card->private_data;
 
 	error = snd_card_azt2320_pnp(dev, acard, pcard, pid);
-	if (error) {
-		snd_card_free(card);
+	if (error)
 		return error;
-	}
 
 	error = snd_card_azt2320_enable_wss(port[dev]);
-	if (error) {
-		snd_card_free(card);
+	if (error)
 		return error;
-	}
 
 	error = snd_wss_create(card, wss_port[dev], -1,
 			       irq[dev],
 			       dma1[dev], dma2[dev],
 			       WSS_HW_DETECT, 0, &chip);
-	if (error < 0) {
-		snd_card_free(card);
+	if (error < 0)
 		return error;
-	}
 
 	strcpy(card->driver, "AZT2320");
 	strcpy(card->shortname, "Aztech AZT2320");
 	sprintf(card->longname, "%s, WSS at 0x%lx, irq %i, dma %i&%i",
 		card->shortname, chip->port, irq[dev], dma1[dev], dma2[dev]);
 
 	error = snd_wss_pcm(chip, 0);
-	if (error < 0) {
-		snd_card_free(card);
+	if (error < 0)
 		return error;
-	}
 	error = snd_wss_mixer(chip);
-	if (error < 0) {
-		snd_card_free(card);
+	if (error < 0)
 		return error;
-	}
 	error = snd_wss_timer(chip, 0);
-	if (error < 0) {
-		snd_card_free(card);
+	if (error < 0)
 		return error;
-	}
 
 	if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
 		if (snd_mpu401_uart_new(card, 0, MPU401_HW_AZT2320,
@@ -233,23 +221,17 @@ static int snd_card_azt2320_probe(int dev,
 				   fm_port[dev], fm_port[dev] + 2);
 		} else {
 			error = snd_opl3_timer_new(opl3, 1, 2);
-			if (error < 0) {
-				snd_card_free(card);
+			if (error < 0)
 				return error;
-			}
 			error = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
-			if (error < 0) {
-				snd_card_free(card);
+			if (error < 0)
 				return error;
-			}
 		}
 	}
 
 	error = snd_card_register(card);
-	if (error < 0) {
-		snd_card_free(card);
+	if (error < 0)
 		return error;
-	}
 	pnp_set_card_drvdata(pcard, card);
 	return 0;
 }
@@ -275,12 +257,6 @@ static int snd_azt2320_pnp_detect(struct pnp_card_link *card,
         return -ENODEV;
 }
 
-static void snd_azt2320_pnp_remove(struct pnp_card_link *pcard)
-{
-	snd_card_free(pnp_get_card_drvdata(pcard));
-	pnp_set_card_drvdata(pcard, NULL);
-}
-
 #ifdef CONFIG_PM
 static int snd_azt2320_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
 {
@@ -310,7 +286,6 @@ static struct pnp_card_driver azt2320_pnpc_driver = {
 	.name           = "azt2320",
 	.id_table       = snd_azt2320_pnpids,
 	.probe          = snd_azt2320_pnp_detect,
-	.remove         = snd_azt2320_pnp_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_azt2320_pnp_suspend,
 	.resume		= snd_azt2320_pnp_resume,