diff --git a/include/sound/ymfpci.h b/include/sound/ymfpci.h
index a3c5de59a248..f3514ee96bd9 100644
--- a/include/sound/ymfpci.h
+++ b/include/sound/ymfpci.h
@@ -286,7 +286,7 @@ struct snd_ymfpci {
 	int irq;
 
 	unsigned int device_id;	/* PCI device ID */
-	unsigned int rev;	/* PCI revision */
+	unsigned char rev;	/* PCI revision */
 	unsigned long reg_area_phys;
 	void __iomem *reg_area_virt;
 	struct resource *res_reg_area;
diff --git a/sound/pci/ca0106/ca0106.h b/sound/pci/ca0106/ca0106.h
index 9cb66c59f523..aaac6e5b4767 100644
--- a/sound/pci/ca0106/ca0106.h
+++ b/sound/pci/ca0106/ca0106.h
@@ -590,7 +590,7 @@ struct snd_ca0106 {
 	struct resource *res_port;
 	int irq;
 
-	unsigned int revision;		/* chip revision */
+	unsigned char revision;		/* chip revision */
 	unsigned int serial;            /* serial number */
 	unsigned short model;		/* subsystem id */
 
diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c
index 6fa4a302f7de..2adbd003851d 100644
--- a/sound/pci/ca0106/ca0106_main.c
+++ b/sound/pci/ca0106/ca0106_main.c
@@ -1283,7 +1283,7 @@ static int __devinit snd_ca0106_create(struct snd_card *card,
 
 	pci_set_master(pci);
 	/* read revision & serial */
-	pci_read_config_byte(pci, PCI_REVISION_ID, (char *)&chip->revision);
+	pci_read_config_byte(pci, PCI_REVISION_ID, &chip->revision);
 	pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
 	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
 #if 1
diff --git a/sound/pci/emu10k1/emu10k1x.c b/sound/pci/emu10k1/emu10k1x.c
index c46905a11175..e0724394ed25 100644
--- a/sound/pci/emu10k1/emu10k1x.c
+++ b/sound/pci/emu10k1/emu10k1x.c
@@ -235,7 +235,7 @@ struct emu10k1x {
 	struct resource *res_port;
 	int irq;
 
-	unsigned int revision;		/* chip revision */
+	unsigned char revision;		/* chip revision */
 	unsigned int serial;            /* serial number */
 	unsigned short model;		/* subsystem id */
 
@@ -943,7 +943,7 @@ static int __devinit snd_emu10k1x_create(struct snd_card *card,
 
 	pci_set_master(pci);
 	/* read revision & serial */
-	pci_read_config_byte(pci, PCI_REVISION_ID, (char *)&chip->revision);
+	pci_read_config_byte(pci, PCI_REVISION_ID, &chip->revision);
 	pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
 	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
 	snd_printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model,
diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
index 16be1f395484..843dcca1d4a5 100644
--- a/sound/pci/ymfpci/ymfpci_main.c
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -2291,7 +2291,7 @@ int __devinit snd_ymfpci_create(struct snd_card *card,
 	chip->pci = pci;
 	chip->irq = -1;
 	chip->device_id = pci->device;
-	pci_read_config_byte(pci, PCI_REVISION_ID, (u8 *)&chip->rev);
+	pci_read_config_byte(pci, PCI_REVISION_ID, &chip->rev);
 	chip->reg_area_phys = pci_resource_start(pci, 0);
 	chip->reg_area_virt = ioremap_nocache(chip->reg_area_phys, 0x8000);
 	pci_set_master(pci);