sata_mv: use {platform|pci}_get_drvdata()

The driver uses dev_get_drvdata() to get to the driver data for the
platform and PCI devices, while the corresponding wrappers exists for
them -- in one case it even declares an otherwise unneeded variable
to do that.  Switch to using the {platform|pci}_get_drvdata() instead.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/ata/sata_mv.c

@@ -4113,8 +4113,7 @@ static int mv_platform_probe(struct platform_device *pdev)
  */
 static int __devexit mv_platform_remove(struct platform_device *pdev)
 {
-	struct device *dev = &pdev->dev;
-	struct ata_host *host = dev_get_drvdata(dev);
+	struct ata_host *host = platform_get_drvdata(pdev);
 #if defined(CONFIG_HAVE_CLK)
 	struct mv_host_priv *hpriv = host->private_data;
 #endif
@@ -4132,7 +4131,7 @@ static int __devexit mv_platform_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int mv_platform_suspend(struct platform_device *pdev, pm_message_t state)
 {
-	struct ata_host *host = dev_get_drvdata(&pdev->dev);
+	struct ata_host *host = platform_get_drvdata(pdev);
 	if (host)
 		return ata_host_suspend(host, state);
 	else
@@ -4141,7 +4140,7 @@ static int mv_platform_suspend(struct platform_device *pdev, pm_message_t state)
 
 static int mv_platform_resume(struct platform_device *pdev)
 {
-	struct ata_host *host = dev_get_drvdata(&pdev->dev);
+	struct ata_host *host = platform_get_drvdata(pdev);
 	int ret;
 
 	if (host) {
@@ -4356,7 +4355,7 @@ static int mv_pci_init_one(struct pci_dev *pdev,
 #ifdef CONFIG_PM
 static int mv_pci_device_resume(struct pci_dev *pdev)
 {
-	struct ata_host *host = dev_get_drvdata(&pdev->dev);
+	struct ata_host *host = pci_get_drvdata(pdev);
 	int rc;
 
 	rc = ata_pci_device_do_resume(pdev);