isa: Make the remove callback for isa drivers return void

The driver core ignores the return value of the remove callback, so
don't give isa drivers the chance to provide a value.

Adapt all isa_drivers with a remove callbacks accordingly; they all
return 0 unconditionally anyhow.

Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for drivers/net/can/sja1000/tscan1.c
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Acked-by: Wolfram Sang <wsa@kernel.org> # for drivers/i2c/
Reviewed-by: Takashi Iway <tiwai@suse.de> # for sound/
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for drivers/media/
Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Link: https://lore.kernel.org/r/20210122092449.426097-4-uwe@kleine-koenig.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>

38 files changed, 41 insertions, 83 deletions

diff --git a/drivers/base/isa.c b/drivers/base/isa.c
index 2772f5d1948a..aa4737667026 100644
--- a/drivers/base/isa.c
+++ b/drivers/base/isa.c
@@ -51,7 +51,7 @@ static int isa_bus_remove(struct device *dev)
 	struct isa_driver *isa_driver = dev->platform_data;
 
 	if (isa_driver && isa_driver->remove)
-		return isa_driver->remove(dev, to_isa_dev(dev)->id);
+		isa_driver->remove(dev, to_isa_dev(dev)->id);
 
 	return 0;
 }
diff --git a/drivers/i2c/busses/i2c-elektor.c b/drivers/i2c/busses/i2c-elektor.c
index 140426db28df..b72a3c3ef2ab 100644
--- a/drivers/i2c/busses/i2c-elektor.c
+++ b/drivers/i2c/busses/i2c-elektor.c
@@ -282,7 +282,7 @@ static int elektor_probe(struct device *dev, unsigned int id)
 	return -ENODEV;
 }
 
-static int elektor_remove(struct device *dev, unsigned int id)
+static void elektor_remove(struct device *dev, unsigned int id)
 {
 	i2c_del_adapter(&pcf_isa_ops);
 
@@ -298,8 +298,6 @@ static int elektor_remove(struct device *dev, unsigned int id)
 		iounmap(base_iomem);
 		release_mem_region(base, 2);
 	}
-
-	return 0;
 }
 
 static struct isa_driver i2c_elektor_driver = {
diff --git a/drivers/i2c/busses/i2c-pca-isa.c b/drivers/i2c/busses/i2c-pca-isa.c
index f27bc1e55385..85e8cf58e8bf 100644
--- a/drivers/i2c/busses/i2c-pca-isa.c
+++ b/drivers/i2c/busses/i2c-pca-isa.c
@@ -161,7 +161,7 @@ static int pca_isa_probe(struct device *dev, unsigned int id)
 	return -ENODEV;
 }
 
-static int pca_isa_remove(struct device *dev, unsigned int id)
+static void pca_isa_remove(struct device *dev, unsigned int id)
 {
 	i2c_del_adapter(&pca_isa_ops);
 
@@ -170,8 +170,6 @@ static int pca_isa_remove(struct device *dev, unsigned int id)
 		free_irq(irq, &pca_isa_ops);
 	}
 	release_region(base, IO_SIZE);
-
-	return 0;
 }
 
 static struct isa_driver pca_isa_driver = {
diff --git a/drivers/input/touchscreen/htcpen.c b/drivers/input/touchscreen/htcpen.c
index 2f261a34f9c2..056ba76087e8 100644
--- a/drivers/input/touchscreen/htcpen.c
+++ b/drivers/input/touchscreen/htcpen.c
@@ -171,7 +171,7 @@ static int htcpen_isa_probe(struct device *dev, unsigned int id)
 	return err;
 }
 
-static int htcpen_isa_remove(struct device *dev, unsigned int id)
+static void htcpen_isa_remove(struct device *dev, unsigned int id)
 {
 	struct input_dev *htcpen_dev = dev_get_drvdata(dev);
 
@@ -182,8 +182,6 @@ static int htcpen_isa_remove(struct device *dev, unsigned int id)
 	release_region(HTCPEN_PORT_INDEX, 2);
 	release_region(HTCPEN_PORT_INIT, 1);
 	release_region(HTCPEN_PORT_IRQ_CLEAR, 1);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/media/radio/radio-isa.c b/drivers/media/radio/radio-isa.c
index 527f4c3b0ca4..c591c0851fa2 100644
--- a/drivers/media/radio/radio-isa.c
+++ b/drivers/media/radio/radio-isa.c
@@ -337,13 +337,11 @@ int radio_isa_probe(struct device *pdev, unsigned int dev)
 }
 EXPORT_SYMBOL_GPL(radio_isa_probe);
 
-int radio_isa_remove(struct device *pdev, unsigned int dev)
+void radio_isa_remove(struct device *pdev, unsigned int dev)
 {
 	struct radio_isa_card *isa = dev_get_drvdata(pdev);
 
 	radio_isa_common_remove(isa, isa->drv->region_size);
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(radio_isa_remove);
 
diff --git a/drivers/media/radio/radio-isa.h b/drivers/media/radio/radio-isa.h
index 2f0736edfda8..c9159958203e 100644
--- a/drivers/media/radio/radio-isa.h
+++ b/drivers/media/radio/radio-isa.h
@@ -91,7 +91,7 @@ struct radio_isa_driver {
 
 int radio_isa_match(struct device *pdev, unsigned int dev);
 int radio_isa_probe(struct device *pdev, unsigned int dev);
-int radio_isa_remove(struct device *pdev, unsigned int dev);
+void radio_isa_remove(struct device *pdev, unsigned int dev);
 #ifdef CONFIG_PNP
 int radio_isa_pnp_probe(struct pnp_dev *dev,
 			const struct pnp_device_id *dev_id);
diff --git a/drivers/media/radio/radio-sf16fmr2.c b/drivers/media/radio/radio-sf16fmr2.c
index 0388894cfe41..d0dde55b7930 100644
--- a/drivers/media/radio/radio-sf16fmr2.c
+++ b/drivers/media/radio/radio-sf16fmr2.c
@@ -293,11 +293,9 @@ static void fmr2_remove(struct fmr2 *fmr2)
 	kfree(fmr2);
 }
 
-static int fmr2_isa_remove(struct device *pdev, unsigned int ndev)
+static void fmr2_isa_remove(struct device *pdev, unsigned int ndev)
 {
 	fmr2_remove(dev_get_drvdata(pdev));
-
-	return 0;
 }
 
 static void fmr2_pnp_remove(struct pnp_dev *pdev)
diff --git a/drivers/net/can/sja1000/tscan1.c b/drivers/net/can/sja1000/tscan1.c
index 6ea802c66124..3dbba8d61afb 100644
--- a/drivers/net/can/sja1000/tscan1.c
+++ b/drivers/net/can/sja1000/tscan1.c
@@ -159,7 +159,7 @@ static int tscan1_probe(struct device *dev, unsigned id)
 	return -ENXIO;
 }
 
-static int tscan1_remove(struct device *dev, unsigned id /*unused*/)
+static void tscan1_remove(struct device *dev, unsigned id /*unused*/)
 {
 	struct net_device *netdev;
 	struct sja1000_priv *priv;
@@ -179,8 +179,6 @@ static int tscan1_remove(struct device *dev, unsigned id /*unused*/)
 	release_region(pld_base, TSCAN1_PLD_SIZE);
 
 	free_sja1000dev(netdev);
-
-	return 0;
 }
 
 static struct isa_driver tscan1_isa_driver = {
diff --git a/drivers/net/ethernet/3com/3c509.c b/drivers/net/ethernet/3com/3c509.c
index 667f38c9e4c6..53e1f7e07959 100644
--- a/drivers/net/ethernet/3com/3c509.c
+++ b/drivers/net/ethernet/3com/3c509.c
@@ -335,12 +335,11 @@ static int el3_isa_match(struct device *pdev, unsigned int ndev)
 	return 1;
 }
 
-static int el3_isa_remove(struct device *pdev,
+static void el3_isa_remove(struct device *pdev,
 				    unsigned int ndev)
 {
 	el3_device_remove(pdev);
 	dev_set_drvdata(pdev, NULL);
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
index 79830e77afa9..b1e97f75b0ba 100644
--- a/drivers/scsi/advansys.c
+++ b/drivers/scsi/advansys.c
@@ -11459,12 +11459,11 @@ static int advansys_isa_probe(struct device *dev, unsigned int id)
 	return err;
 }
 
-static int advansys_isa_remove(struct device *dev, unsigned int id)
+static void advansys_isa_remove(struct device *dev, unsigned int id)
 {
 	int ioport = _asc_def_iop_base[id];
 	advansys_release(dev_get_drvdata(dev));
 	release_region(ioport, ASC_IOADR_GAP);
-	return 0;
 }
 
 static struct isa_driver advansys_isa_driver = {
diff --git a/drivers/scsi/aha1542.c b/drivers/scsi/aha1542.c
index dc5667afeb27..e0d8cca1c70b 100644
--- a/drivers/scsi/aha1542.c
+++ b/drivers/scsi/aha1542.c
@@ -1025,12 +1025,11 @@ static int aha1542_isa_match(struct device *pdev, unsigned int ndev)
 	return 1;
 }
 
-static int aha1542_isa_remove(struct device *pdev,
+static void aha1542_isa_remove(struct device *pdev,
 				    unsigned int ndev)
 {
 	aha1542_release(dev_get_drvdata(pdev));
 	dev_set_drvdata(pdev, NULL);
-	return 0;
 }
 
 static struct isa_driver aha1542_isa_driver = {
diff --git a/drivers/scsi/fdomain_isa.c b/drivers/scsi/fdomain_isa.c
index e0cdcd2003d0..2b4280a43a53 100644
--- a/drivers/scsi/fdomain_isa.c
+++ b/drivers/scsi/fdomain_isa.c
@@ -175,7 +175,7 @@ static int fdomain_isa_param_match(struct device *dev, unsigned int ndev)
 	return 1;
 }
 
-static int fdomain_isa_remove(struct device *dev, unsigned int ndev)
+static void fdomain_isa_remove(struct device *dev, unsigned int ndev)
 {
 	struct Scsi_Host *sh = dev_get_drvdata(dev);
 	int base = sh->io_port;
@@ -183,7 +183,6 @@ static int fdomain_isa_remove(struct device *dev, unsigned int ndev)
 	fdomain_destroy(sh);
 	release_region(base, FDOMAIN_REGION_SIZE);
 	dev_set_drvdata(dev, NULL);
-	return 0;
 }
 
 static struct isa_driver fdomain_isa_driver = {
diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c
index 2df2f38a9b12..7ba3c9312731 100644
--- a/drivers/scsi/g_NCR5380.c
+++ b/drivers/scsi/g_NCR5380.c
@@ -720,12 +720,11 @@ static int generic_NCR5380_isa_match(struct device *pdev, unsigned int ndev)
 	return 1;
 }
 
-static int generic_NCR5380_isa_remove(struct device *pdev,
-                                      unsigned int ndev)
+static void generic_NCR5380_isa_remove(struct device *pdev,
+				       unsigned int ndev)
 {
 	generic_NCR5380_release_resources(dev_get_drvdata(pdev));
 	dev_set_drvdata(pdev, NULL);
-	return 0;
 }
 
 static struct isa_driver generic_NCR5380_isa_driver = {
diff --git a/drivers/watchdog/pcwd.c b/drivers/watchdog/pcwd.c
index b95cd38f3ceb..a793b03a785d 100644
--- a/drivers/watchdog/pcwd.c
+++ b/drivers/watchdog/pcwd.c
@@ -951,7 +951,7 @@ error_request_region:
 	return ret;
 }
 
-static int pcwd_isa_remove(struct device *dev, unsigned int id)
+static void pcwd_isa_remove(struct device *dev, unsigned int id)
 {
 	if (debug >= DEBUG)
 		pr_debug("pcwd_isa_remove id=%d\n", id);
@@ -968,8 +968,6 @@ static int pcwd_isa_remove(struct device *dev, unsigned int id)
 			(pcwd_private.revision == PCWD_REVISION_A) ? 2 : 4);
 	pcwd_private.io_addr = 0x0000;
 	cards_found--;
-
-	return 0;
 }
 
 static void pcwd_isa_shutdown(struct device *dev, unsigned int id)
diff --git a/include/linux/isa.h b/include/linux/isa.h
index 41336da0f4e7..e30963190968 100644
--- a/include/linux/isa.h
+++ b/include/linux/isa.h
@@ -13,7 +13,7 @@
 struct isa_driver {
 	int (*match)(struct device *, unsigned int);
 	int (*probe)(struct device *, unsigned int);
-	int (*remove)(struct device *, unsigned int);
+	void (*remove)(struct device *, unsigned int);
 	void (*shutdown)(struct device *, unsigned int);
 	int (*suspend)(struct device *, unsigned int, pm_message_t);
 	int (*resume)(struct device *, unsigned int);
diff --git a/sound/isa/ad1848/ad1848.c b/sound/isa/ad1848/ad1848.c
index 593c6e959afe..48f7cc57c3da 100644
--- a/sound/isa/ad1848/ad1848.c
+++ b/sound/isa/ad1848/ad1848.c
@@ -118,10 +118,9 @@ out:	snd_card_free(card);
 	return error;
 }
 
-static int snd_ad1848_remove(struct device *dev, unsigned int n)
+static void snd_ad1848_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/sound/isa/adlib.c b/sound/isa/adlib.c
index 5105524b6f38..e6cd7c4da38e 100644
--- a/sound/isa/adlib.c
+++ b/sound/isa/adlib.c
@@ -97,10 +97,9 @@ out:	snd_card_free(card);
 	return error;
 }
 
-static int snd_adlib_remove(struct device *dev, unsigned int n)
+static void snd_adlib_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
-	return 0;
 }
 
 static struct isa_driver snd_adlib_driver = {
diff --git a/sound/isa/cmi8328.c b/sound/isa/cmi8328.c
index faca5dd95bfe..3b9fbb02864b 100644
--- a/sound/isa/cmi8328.c
+++ b/sound/isa/cmi8328.c
@@ -403,7 +403,7 @@ error:
 	return err;
 }
 
-static int snd_cmi8328_remove(struct device *pdev, unsigned int dev)
+static void snd_cmi8328_remove(struct device *pdev, unsigned int dev)
 {
 	struct snd_card *card = dev_get_drvdata(pdev);
 	struct snd_cmi8328 *cmi = card->private_data;
@@ -420,7 +420,6 @@ static int snd_cmi8328_remove(struct device *pdev, unsigned int dev)
 	snd_cmi8328_cfg_write(cmi->port, CFG2, 0);
 	snd_cmi8328_cfg_write(cmi->port, CFG3, 0);
 	snd_card_free(card);
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/sound/isa/cmi8330.c b/sound/isa/cmi8330.c
index 4669eb0cc8ce..19e258527d69 100644
--- a/sound/isa/cmi8330.c
+++ b/sound/isa/cmi8330.c
@@ -631,11 +631,10 @@ static int snd_cmi8330_isa_probe(struct device *pdev,
 	return 0;
 }
 
-static int snd_cmi8330_isa_remove(struct device *devptr,
+static void snd_cmi8330_isa_remove(struct device *devptr,
 				  unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/sound/isa/cs423x/cs4231.c b/sound/isa/cs423x/cs4231.c
index 2135963eba78..383ee621cea1 100644
--- a/sound/isa/cs423x/cs4231.c
+++ b/sound/isa/cs423x/cs4231.c
@@ -135,10 +135,9 @@ out:	snd_card_free(card);
 	return error;
 }
 
-static int snd_cs4231_remove(struct device *dev, unsigned int n)
+static void snd_cs4231_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/sound/isa/cs423x/cs4236.c b/sound/isa/cs423x/cs4236.c
index fa3c39cff5f8..24688271e73f 100644
--- a/sound/isa/cs423x/cs4236.c
+++ b/sound/isa/cs423x/cs4236.c
@@ -487,11 +487,10 @@ static int snd_cs423x_isa_probe(struct device *pdev,
 	return 0;
 }
 
-static int snd_cs423x_isa_remove(struct device *pdev,
+static void snd_cs423x_isa_remove(struct device *pdev,
 				 unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(pdev));
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/sound/isa/es1688/es1688.c b/sound/isa/es1688/es1688.c
index 64610571a5e1..d99bb3f8f0c1 100644
--- a/sound/isa/es1688/es1688.c
+++ b/sound/isa/es1688/es1688.c
@@ -192,10 +192,9 @@ out:
 	return error;
 }
 
-static int snd_es1688_isa_remove(struct device *dev, unsigned int n)
+static void snd_es1688_isa_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
-	return 0;
 }
 
 static struct isa_driver snd_es1688_driver = {
diff --git a/sound/isa/es18xx.c b/sound/isa/es18xx.c
index 5f8d7e8a5477..9beef8079177 100644
--- a/sound/isa/es18xx.c
+++ b/sound/isa/es18xx.c
@@ -2210,11 +2210,10 @@ static int snd_es18xx_isa_probe(struct device *pdev, unsigned int dev)
 	}
 }
 
-static int snd_es18xx_isa_remove(struct device *devptr,
-				 unsigned int dev)
+static void snd_es18xx_isa_remove(struct device *devptr,
+				  unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/sound/isa/galaxy/galaxy.c b/sound/isa/galaxy/galaxy.c
index 65f9f46c9f58..d33d69f29924 100644
--- a/sound/isa/galaxy/galaxy.c
+++ b/sound/isa/galaxy/galaxy.c
@@ -608,10 +608,9 @@ error:
 	return err;
 }
 
-static int snd_galaxy_remove(struct device *dev, unsigned int n)
+static void snd_galaxy_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
-	return 0;
 }
 
 static struct isa_driver snd_galaxy_driver = {
diff --git a/sound/isa/gus/gusclassic.c b/sound/isa/gus/gusclassic.c
index 7419b1939754..015f88a11352 100644
--- a/sound/isa/gus/gusclassic.c
+++ b/sound/isa/gus/gusclassic.c
@@ -195,10 +195,9 @@ out:	snd_card_free(card);
 	return error;
 }
 
-static int snd_gusclassic_remove(struct device *dev, unsigned int n)
+static void snd_gusclassic_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
-	return 0;
 }
 
 static struct isa_driver snd_gusclassic_driver = {
diff --git a/sound/isa/gus/gusextreme.c b/sound/isa/gus/gusextreme.c
index ed2f9d64efae..c9f31b4fb887 100644
--- a/sound/isa/gus/gusextreme.c
+++ b/sound/isa/gus/gusextreme.c
@@ -324,10 +324,9 @@ out:	snd_card_free(card);
 	return error;
 }
 
-static int snd_gusextreme_remove(struct device *dev, unsigned int n)
+static void snd_gusextreme_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
-	return 0;
 }
 
 static struct isa_driver snd_gusextreme_driver = {
diff --git a/sound/isa/gus/gusmax.c b/sound/isa/gus/gusmax.c
index 05cd9be4dd8a..dc09fbd6f88d 100644
--- a/sound/isa/gus/gusmax.c
+++ b/sound/isa/gus/gusmax.c
@@ -338,10 +338,9 @@ static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
 	return err;
 }
 
-static int snd_gusmax_remove(struct device *devptr, unsigned int dev)
+static void snd_gusmax_remove(struct device *devptr, unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
-	return 0;
 }
 
 #define DEV_NAME "gusmax"
diff --git a/sound/isa/gus/interwave.c b/sound/isa/gus/interwave.c
index 3e9ad930deae..e4d412e72b75 100644
--- a/sound/isa/gus/interwave.c
+++ b/sound/isa/gus/interwave.c
@@ -825,10 +825,9 @@ static int snd_interwave_isa_probe(struct device *pdev,
 	}
 }
 
-static int snd_interwave_isa_remove(struct device *devptr, unsigned int dev)
+static void snd_interwave_isa_remove(struct device *devptr, unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
-	return 0;
 }
 
 static struct isa_driver snd_interwave_driver = {
diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c
index 24b34ecf5e5b..69647b41300d 100644
--- a/sound/isa/msnd/msnd_pinnacle.c
+++ b/sound/isa/msnd/msnd_pinnacle.c
@@ -1049,10 +1049,9 @@ cfg_error:
 #endif
 }
 
-static int snd_msnd_isa_remove(struct device *pdev, unsigned int dev)
+static void snd_msnd_isa_remove(struct device *pdev, unsigned int dev)
 {
 	snd_msnd_unload(dev_get_drvdata(pdev));
-	return 0;
 }
 
 static struct isa_driver snd_msnd_driver = {
diff --git a/sound/isa/opl3sa2.c b/sound/isa/opl3sa2.c
index 85a181acd388..7649a8a4128d 100644
--- a/sound/isa/opl3sa2.c
+++ b/sound/isa/opl3sa2.c
@@ -878,11 +878,10 @@ static int snd_opl3sa2_isa_probe(struct device *pdev,
 	return 0;
 }
 
-static int snd_opl3sa2_isa_remove(struct device *devptr,
+static void snd_opl3sa2_isa_remove(struct device *devptr,
 				  unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/sound/isa/opti9xx/miro.c b/sound/isa/opti9xx/miro.c
index 44ed1b65f6ce..20933342f5eb 100644
--- a/sound/isa/opti9xx/miro.c
+++ b/sound/isa/opti9xx/miro.c
@@ -1480,11 +1480,10 @@ static int snd_miro_isa_probe(struct device *devptr, unsigned int n)
 	return 0;
 }
 
-static int snd_miro_isa_remove(struct device *devptr,
+static void snd_miro_isa_remove(struct device *devptr,
 			       unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
-	return 0;
 }
 
 #define DEV_NAME "miro"
diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c
index 881d3b5711d2..758f5b579138 100644
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -1024,11 +1024,10 @@ static int snd_opti9xx_isa_probe(struct device *devptr,
 	return 0;
 }
 
-static int snd_opti9xx_isa_remove(struct device *devptr,
-				  unsigned int dev)
+static void snd_opti9xx_isa_remove(struct device *devptr,
+				   unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/sound/isa/sb/jazz16.c b/sound/isa/sb/jazz16.c
index ee379bbf70a4..0e2e0ab3b9e4 100644
--- a/sound/isa/sb/jazz16.c
+++ b/sound/isa/sb/jazz16.c
@@ -339,12 +339,11 @@ err_free:
 	return err;
 }
 
-static int snd_jazz16_remove(struct device *devptr, unsigned int dev)
+static void snd_jazz16_remove(struct device *devptr, unsigned int dev)
 {
 	struct snd_card *card = dev_get_drvdata(devptr);
 
 	snd_card_free(card);
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/sound/isa/sb/sb16.c b/sound/isa/sb/sb16.c
index 479197c13803..db284b7b88a7 100644
--- a/sound/isa/sb/sb16.c
+++ b/sound/isa/sb/sb16.c
@@ -547,10 +547,9 @@ static int snd_sb16_isa_probe(struct device *pdev, unsigned int dev)
 	}
 }
 
-static int snd_sb16_isa_remove(struct device *pdev, unsigned int dev)
+static void snd_sb16_isa_remove(struct device *pdev, unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(pdev));
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/sound/isa/sb/sb8.c b/sound/isa/sb/sb8.c
index 438109f167d6..8e3e67b9a341 100644
--- a/sound/isa/sb/sb8.c
+++ b/sound/isa/sb/sb8.c
@@ -192,10 +192,9 @@ static int snd_sb8_probe(struct device *pdev, unsigned int dev)
 	return err;
 }
 
-static int snd_sb8_remove(struct device *pdev, unsigned int dev)
+static void snd_sb8_remove(struct device *pdev, unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(pdev));
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/sound/isa/sc6000.c b/sound/isa/sc6000.c
index 3d0bea44f454..def137579717 100644
--- a/sound/isa/sc6000.c
+++ b/sound/isa/sc6000.c
@@ -672,7 +672,7 @@ err_exit:
 	return err;
 }
 
-static int snd_sc6000_remove(struct device *devptr, unsigned int dev)
+static void snd_sc6000_remove(struct device *devptr, unsigned int dev)
 {
 	struct snd_card *card = dev_get_drvdata(devptr);
 	char __iomem **vport = card->private_data;
@@ -684,7 +684,6 @@ static int snd_sc6000_remove(struct device *devptr, unsigned int dev)
 	release_region(mss_port[dev], 4);
 
 	snd_card_free(card);
-	return 0;
 }
 
 static struct isa_driver snd_sc6000_driver = {
diff --git a/sound/isa/sscape.c b/sound/isa/sscape.c
index 2e5a5c5279e8..e70ef9aee545 100644
--- a/sound/isa/sscape.c
+++ b/sound/isa/sscape.c
@@ -1183,10 +1183,9 @@ _release_card:
 	return ret;
 }
 
-static int snd_sscape_remove(struct device *devptr, unsigned int dev)
+static void snd_sscape_remove(struct device *devptr, unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
-	return 0;
 }
 
 #define DEV_NAME "sscape"
diff --git a/sound/isa/wavefront/wavefront.c b/sound/isa/wavefront/wavefront.c
index 9e0f6b226775..b750a4fd40de 100644
--- a/sound/isa/wavefront/wavefront.c
+++ b/sound/isa/wavefront/wavefront.c
@@ -565,11 +565,10 @@ static int snd_wavefront_isa_probe(struct device *pdev,
 	return 0;
 }
 
-static int snd_wavefront_isa_remove(struct device *devptr,
+static void snd_wavefront_isa_remove(struct device *devptr,
 				    unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
-	return 0;
 }
 
 #define DEV_NAME "wavefront"