X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fchar%2Ftpm%2Ftpm_nsc.c;h=608f73071bef91acbdbcb93d6bf17a7527d9a26a;hb=refs%2Fheads%2Fvserver;hp=680a8e3318877b6c6bd7f09ae61d46abd5605871;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git

diff --git a/drivers/char/tpm/tpm_nsc.c b/drivers/char/tpm/tpm_nsc.c
index 680a8e331..608f73071 100644
--- a/drivers/char/tpm/tpm_nsc.c
+++ b/drivers/char/tpm/tpm_nsc.c
@@ -71,7 +71,7 @@ static int wait_for_stat(struct tpm_chip *chip, u8 mask, u8 val, u8 * data)
 	unsigned long stop;
 
 	/* status immediately available check */
-	*data = inb(chip->vendor->base + NSC_STATUS);
+	*data = inb(chip->vendor.base + NSC_STATUS);
 	if ((*data & mask) == val)
 		return 0;
 
@@ -79,7 +79,7 @@ static int wait_for_stat(struct tpm_chip *chip, u8 mask, u8 val, u8 * data)
 	stop = jiffies + 10 * HZ;
 	do {
 		msleep(TPM_TIMEOUT);
-		*data = inb(chip->vendor->base + 1);
+		*data = inb(chip->vendor.base + 1);
 		if ((*data & mask) == val)
 			return 0;
 	}
@@ -94,9 +94,9 @@ static int nsc_wait_for_ready(struct tpm_chip *chip)
 	unsigned long stop;
 
 	/* status immediately available check */
-	status = inb(chip->vendor->base + NSC_STATUS);
+	status = inb(chip->vendor.base + NSC_STATUS);
 	if (status & NSC_STATUS_OBF)
-		status = inb(chip->vendor->base + NSC_DATA);
+		status = inb(chip->vendor.base + NSC_DATA);
 	if (status & NSC_STATUS_RDY)
 		return 0;
 
@@ -104,9 +104,9 @@ static int nsc_wait_for_ready(struct tpm_chip *chip)
 	stop = jiffies + 100;
 	do {
 		msleep(TPM_TIMEOUT);
-		status = inb(chip->vendor->base + NSC_STATUS);
+		status = inb(chip->vendor.base + NSC_STATUS);
 		if (status & NSC_STATUS_OBF)
-			status = inb(chip->vendor->base + NSC_DATA);
+			status = inb(chip->vendor.base + NSC_DATA);
 		if (status & NSC_STATUS_RDY)
 			return 0;
 	}
@@ -132,7 +132,7 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
 		return -EIO;
 	}
 	if ((data =
-	     inb(chip->vendor->base + NSC_DATA)) != NSC_COMMAND_NORMAL) {
+	     inb(chip->vendor.base + NSC_DATA)) != NSC_COMMAND_NORMAL) {
 		dev_err(chip->dev, "not in normal mode (0x%x)\n",
 			data);
 		return -EIO;
@@ -148,7 +148,7 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
 		}
 		if (data & NSC_STATUS_F0)
 			break;
-		*p = inb(chip->vendor->base + NSC_DATA);
+		*p = inb(chip->vendor.base + NSC_DATA);
 	}
 
 	if ((data & NSC_STATUS_F0) == 0 &&
@@ -156,7 +156,7 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
 		dev_err(chip->dev, "F0 not set\n");
 		return -EIO;
 	}
-	if ((data = inb(chip->vendor->base + NSC_DATA)) != NSC_COMMAND_EOC) {
+	if ((data = inb(chip->vendor.base + NSC_DATA)) != NSC_COMMAND_EOC) {
 		dev_err(chip->dev,
 			"expected end of command(0x%x)\n", data);
 		return -EIO;
@@ -182,7 +182,7 @@ static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count)
 	 * fix it. Not sure why this is needed, we followed the flow
 	 * chart in the manual to the letter.
 	 */
-	outb(NSC_COMMAND_CANCEL, chip->vendor->base + NSC_COMMAND);
+	outb(NSC_COMMAND_CANCEL, chip->vendor.base + NSC_COMMAND);
 
 	if (nsc_wait_for_ready(chip) != 0)
 		return -EIO;
@@ -192,7 +192,7 @@ static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count)
 		return -EIO;
 	}
 
-	outb(NSC_COMMAND_NORMAL, chip->vendor->base + NSC_COMMAND);
+	outb(NSC_COMMAND_NORMAL, chip->vendor.base + NSC_COMMAND);
 	if (wait_for_stat(chip, NSC_STATUS_IBR, NSC_STATUS_IBR, &data) < 0) {
 		dev_err(chip->dev, "IBR timeout\n");
 		return -EIO;
@@ -204,29 +204,29 @@ static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count)
 				"IBF timeout (while writing data)\n");
 			return -EIO;
 		}
-		outb(buf[i], chip->vendor->base + NSC_DATA);
+		outb(buf[i], chip->vendor.base + NSC_DATA);
 	}
 
 	if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) {
 		dev_err(chip->dev, "IBF timeout\n");
 		return -EIO;
 	}
-	outb(NSC_COMMAND_EOC, chip->vendor->base + NSC_COMMAND);
+	outb(NSC_COMMAND_EOC, chip->vendor.base + NSC_COMMAND);
 
 	return count;
 }
 
 static void tpm_nsc_cancel(struct tpm_chip *chip)
 {
-	outb(NSC_COMMAND_CANCEL, chip->vendor->base + NSC_COMMAND);
+	outb(NSC_COMMAND_CANCEL, chip->vendor.base + NSC_COMMAND);
 }
 
 static u8 tpm_nsc_status(struct tpm_chip *chip)
 {
-	return inb(chip->vendor->base + NSC_STATUS);
+	return inb(chip->vendor.base + NSC_STATUS);
 }
 
-static struct file_operations nsc_ops = {
+static const struct file_operations nsc_ops = {
 	.owner = THIS_MODULE,
 	.llseek = no_llseek,
 	.open = tpm_open,
@@ -250,7 +250,7 @@ static struct attribute * nsc_attrs[] = {
 
 static struct attribute_group nsc_attr_grp = { .attrs = nsc_attrs };
 
-static struct tpm_vendor_specific tpm_nsc = {
+static const struct tpm_vendor_specific tpm_nsc = {
 	.recv = tpm_nsc_recv,
 	.send = tpm_nsc_send,
 	.cancel = tpm_nsc_cancel,
@@ -268,7 +268,7 @@ static void __devexit tpm_nsc_remove(struct device *dev)
 {
 	struct tpm_chip *chip = dev_get_drvdata(dev);
 	if ( chip ) {
-		release_region(chip->vendor->base, 2);
+		release_region(chip->vendor.base, 2);
 		tpm_remove_hardware(chip->dev);
 	}
 }
@@ -284,9 +284,10 @@ static struct device_driver nsc_drv = {
 static int __init init_nsc(void)
 {
 	int rc = 0;
-	int lo, hi;
+	int lo, hi, err;
 	int nscAddrBase = TPM_ADDR;
-
+	struct tpm_chip *chip;
+	unsigned long base;
 
 	/* verify that it is a National part (SID) */
 	if (tpm_read_index(TPM_ADDR, NSC_SID_INDEX) != 0xEF) {
@@ -296,11 +297,13 @@ static int __init init_nsc(void)
 			return -ENODEV;
 	}
 
-	driver_register(&nsc_drv);
+	err = driver_register(&nsc_drv);
+	if (err)
+		return err;
 
 	hi = tpm_read_index(nscAddrBase, TPM_NSC_BASE0_HI);
 	lo = tpm_read_index(nscAddrBase, TPM_NSC_BASE0_LO);
-	tpm_nsc.base = (hi<<8) | lo;
+	base = (hi<<8) | lo;
 
 	/* enable the DPM module */
 	tpm_write_index(nscAddrBase, NSC_LDC_INDEX, 0x01);
@@ -320,13 +323,15 @@ static int __init init_nsc(void)
 	if ((rc = platform_device_register(pdev)) < 0)
 		goto err_free_dev;
 
-	if (request_region(tpm_nsc.base, 2, "tpm_nsc0") == NULL ) {
+	if (request_region(base, 2, "tpm_nsc0") == NULL ) {
 		rc = -EBUSY;
 		goto err_unreg_dev;
 	}
 
-	if ((rc = tpm_register_hardware(&pdev->dev, &tpm_nsc)) < 0)
+	if (!(chip = tpm_register_hardware(&pdev->dev, &tpm_nsc))) {
+		rc = -ENODEV;
 		goto err_rel_reg;
+	}
 
 	dev_dbg(&pdev->dev, "NSC TPM detected\n");
 	dev_dbg(&pdev->dev,
@@ -361,10 +366,12 @@ static int __init init_nsc(void)
 		 "NSC TPM revision %d\n",
 		 tpm_read_index(nscAddrBase, 0x27) & 0x1F);
 
+	chip->vendor.base = base;
+
 	return 0;
 
 err_rel_reg:
-	release_region(tpm_nsc.base, 2);
+	release_region(base, 2);
 err_unreg_dev:
 	platform_device_unregister(pdev);
 err_free_dev: