ata: sata_dwc_460ex: Use temporary variable for struct device

Use temporary variable for struct device to make code neater.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

drivers/ata/sata_dwc_460ex.c

@@ -215,9 +215,10 @@ static int sata_dwc_dma_get_channel_old(struct sata_dwc_device_port *hsdevp)
 {
 	struct sata_dwc_device *hsdev = hsdevp->hsdev;
 	struct dw_dma_slave *dws = &sata_dwc_dma_dws;
+	struct device *dev = hsdev->dev;
 	dma_cap_mask_t mask;
 
-	dws->dma_dev = hsdev->dev;
+	dws->dma_dev = dev;
 
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_SLAVE, mask);
@@ -225,8 +226,7 @@ static int sata_dwc_dma_get_channel_old(struct sata_dwc_device_port *hsdevp)
 	/* Acquire DMA channel */
 	hsdevp->chan = dma_request_channel(mask, sata_dwc_dma_filter, hsdevp);
 	if (!hsdevp->chan) {
-		dev_err(hsdev->dev, "%s: dma channel unavailable\n",
-			 __func__);
+		dev_err(dev, "%s: dma channel unavailable\n", __func__);
 		return -EAGAIN;
 	}
 
@@ -236,19 +236,20 @@ static int sata_dwc_dma_get_channel_old(struct sata_dwc_device_port *hsdevp)
 static int sata_dwc_dma_init_old(struct platform_device *pdev,
 				 struct sata_dwc_device *hsdev)
 {
-	struct device_node *np = pdev->dev.of_node;
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
 
-	hsdev->dma = devm_kzalloc(&pdev->dev, sizeof(*hsdev->dma), GFP_KERNEL);
+	hsdev->dma = devm_kzalloc(dev, sizeof(*hsdev->dma), GFP_KERNEL);
 	if (!hsdev->dma)
 		return -ENOMEM;
 
-	hsdev->dma->dev = &pdev->dev;
+	hsdev->dma->dev = dev;
 	hsdev->dma->id = pdev->id;
 
 	/* Get SATA DMA interrupt number */
 	hsdev->dma->irq = irq_of_parse_and_map(np, 1);
 	if (hsdev->dma->irq == NO_IRQ) {
-		dev_err(&pdev->dev, "no SATA DMA irq\n");
+		dev_err(dev, "no SATA DMA irq\n");
 		return -ENODEV;
 	}
 
@@ -1205,6 +1206,8 @@ static const struct ata_port_info sata_dwc_port_info[] = {
 
 static int sata_dwc_probe(struct platform_device *ofdev)
 {
+	struct device *dev = &ofdev->dev;
+	struct device_node *np = dev->of_node;
 	struct sata_dwc_device *hsdev;
 	u32 idr, versionr;
 	char *ver = (char *)&versionr;
@@ -1214,12 +1217,11 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 	struct ata_host *host;
 	struct ata_port_info pi = sata_dwc_port_info[0];
 	const struct ata_port_info *ppi[] = { &pi, NULL };
-	struct device_node *np = ofdev->dev.of_node;
 	struct resource *res;
 
 	/* Allocate DWC SATA device */
-	host = ata_host_alloc_pinfo(&ofdev->dev, ppi, SATA_DWC_MAX_PORTS);
-	hsdev = devm_kzalloc(&ofdev->dev, sizeof(*hsdev), GFP_KERNEL);
+	host = ata_host_alloc_pinfo(dev, ppi, SATA_DWC_MAX_PORTS);
+	hsdev = devm_kzalloc(dev, sizeof(*hsdev), GFP_KERNEL);
 	if (!host || !hsdev)
 		return -ENOMEM;
 
@@ -1229,7 +1231,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 	base = devm_platform_get_and_ioremap_resource(ofdev, 0, &res);
 	if (IS_ERR(base))
 		return PTR_ERR(base);
-	dev_dbg(&ofdev->dev, "ioremap done for SATA register address\n");
+	dev_dbg(dev, "ioremap done for SATA register address\n");
 
 	/* Synopsys DWC SATA specific Registers */
 	hsdev->sata_dwc_regs = base + SATA_DWC_REG_OFFSET;
@@ -1243,11 +1245,10 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 	/* Read the ID and Version Registers */
 	idr = sata_dwc_readl(&hsdev->sata_dwc_regs->idr);
 	versionr = sata_dwc_readl(&hsdev->sata_dwc_regs->versionr);
-	dev_notice(&ofdev->dev, "id %d, controller version %c.%c%c\n",
-		   idr, ver[0], ver[1], ver[2]);
+	dev_notice(dev, "id %d, controller version %c.%c%c\n", idr, ver[0], ver[1], ver[2]);
 
 	/* Save dev for later use in dev_xxx() routines */
-	hsdev->dev = &ofdev->dev;
+	hsdev->dev = dev;
 
 	/* Enable SATA Interrupts */
 	sata_dwc_enable_interrupts(hsdev);
@@ -1255,7 +1256,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 	/* Get SATA interrupt number */
 	irq = irq_of_parse_and_map(np, 0);
 	if (irq == NO_IRQ) {
-		dev_err(&ofdev->dev, "no SATA DMA irq\n");
+		dev_err(dev, "no SATA DMA irq\n");
 		return -ENODEV;
 	}
 
@@ -1267,7 +1268,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 	}
 #endif
 
-	hsdev->phy = devm_phy_optional_get(hsdev->dev, "sata-phy");
+	hsdev->phy = devm_phy_optional_get(dev, "sata-phy");
 	if (IS_ERR(hsdev->phy))
 		return PTR_ERR(hsdev->phy);
 
@@ -1282,7 +1283,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 	 */
 	err = ata_host_activate(host, irq, sata_dwc_isr, 0, &sata_dwc_sht);
 	if (err)
-		dev_err(&ofdev->dev, "failed to activate host");
+		dev_err(dev, "failed to activate host");
 
 	return 0;
 
@@ -1306,7 +1307,7 @@ static int sata_dwc_remove(struct platform_device *ofdev)
 	sata_dwc_dma_exit_old(hsdev);
 #endif
 
-	dev_dbg(&ofdev->dev, "done\n");
+	dev_dbg(dev, "done\n");
 	return 0;
 }