[PATCH v2 57/79] ALSA: als100: Allocate resources with device-managed APIs

[Takashi Iwai <tiwai@xxxxxxx>]

This patch converts the resource management in ISA als100 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.

Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
 sound/isa/als100.c | 41 ++++++++++-------------------------------
 1 file changed, 10 insertions(+), 31 deletions(-)

diff --git a/sound/isa/als100.c b/sound/isa/als100.c
index d4597fdfe091..d582eff64082 100644
--- a/sound/isa/als100.c
+++ b/sound/isa/als100.c
@@ -170,18 +170,16 @@ static int snd_card_als100_probe(int dev,
 	struct snd_card_als100 *acard;
 	struct snd_opl3 *opl3;
 
-	error = snd_card_new(&pcard->card->dev,
-			     index[dev], id[dev], THIS_MODULE,
-			     sizeof(struct snd_card_als100), &card);
+	error = snd_devm_card_new(&pcard->card->dev,
+				  index[dev], id[dev], THIS_MODULE,
+				  sizeof(struct snd_card_als100), &card);
 	if (error < 0)
 		return error;
 	acard = card->private_data;
 
 	error = snd_card_als100_pnp(dev, acard, pcard, pid);
-	if (error) {
-		snd_card_free(card);
+	if (error)
 		return error;
-	}
 
 	if (pid->driver_data == SB_HW_DT019X)
 		dma16[dev] = -1;
@@ -191,10 +189,8 @@ static int snd_card_als100_probe(int dev,
 				  dma8[dev], dma16[dev],
 				  pid->driver_data,
 				  &chip);
-	if (error < 0) {
-		snd_card_free(card);
+	if (error < 0)
 		return error;
-	}
 	acard->chip = chip;
 
 	if (pid->driver_data == SB_HW_DT019X) {
@@ -213,16 +209,12 @@ static int snd_card_als100_probe(int dev,
 	}
 
 	error = snd_sb16dsp_pcm(chip, 0);
-	if (error < 0) {
-		snd_card_free(card);
+	if (error < 0)
 		return error;
-	}
 
 	error = snd_sbmixer_new(chip);
-	if (error < 0) {
-		snd_card_free(card);
+	if (error < 0)
 		return error;
-	}
 
 	if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
 		int mpu_type = MPU401_HW_ALS100;
@@ -249,23 +241,17 @@ static int snd_card_als100_probe(int dev,
 				   fm_port[dev], fm_port[dev] + 2);
 		} else {
 			error = snd_opl3_timer_new(opl3, 0, 1);
-			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;
 }
@@ -291,12 +277,6 @@ static int snd_als100_pnp_detect(struct pnp_card_link *card,
 	return -ENODEV;
 }
 
-static void snd_als100_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_als100_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
 {
@@ -327,7 +307,6 @@ static struct pnp_card_driver als100_pnpc_driver = {
 	.name		= "als100",
         .id_table       = snd_als100_pnpids,
         .probe          = snd_als100_pnp_detect,
-	.remove		= snd_als100_pnp_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_als100_pnp_suspend,
 	.resume		= snd_als100_pnp_resume,
-- 
2.26.2