net: can: use platform_{get,set}_drvdata()

Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev,
so we can directly pass a struct platform_device.

Also, unnecessary dev_set_drvdata() is removed, because the driver core
clears the driver data to NULL after device_release or on probe failure.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

8 files changed, 20 insertions, 30 deletions

diff --git a/drivers/net/can/bfin_can.c b/drivers/net/can/bfin_can.c
index d4a15e82bfc0..a2700d25ff0e 100644
--- a/drivers/net/can/bfin_can.c
+++ b/drivers/net/can/bfin_can.c
@@ -580,7 +580,7 @@ static int bfin_can_probe(struct platform_device *pdev)
         priv->pin_list = pdata;
         priv->can.clock.freq = get_sclk();
 
-        dev_set_drvdata(&pdev->dev, dev);
+        platform_set_drvdata(pdev, dev);
         SET_NETDEV_DEV(dev, &pdev->dev);
 
         dev->flags |= IFF_ECHO; /* we support local echo */
@@ -613,7 +613,7 @@ exit:
 
 static int bfin_can_remove(struct platform_device *pdev)
 {
-        struct net_device *dev = dev_get_drvdata(&pdev->dev);
+        struct net_device *dev = platform_get_drvdata(pdev);
         struct bfin_can_priv *priv = netdev_priv(dev);
         struct resource *res;
 
@@ -621,8 +621,6 @@ static int bfin_can_remove(struct platform_device *pdev)
 
         unregister_candev(dev);
 
-        dev_set_drvdata(&pdev->dev, NULL);
-
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         release_mem_region(res->start, resource_size(res));
 
@@ -635,7 +633,7 @@ static int bfin_can_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int bfin_can_suspend(struct platform_device *pdev, pm_message_t mesg)
 {
-        struct net_device *dev = dev_get_drvdata(&pdev->dev);
+        struct net_device *dev = platform_get_drvdata(pdev);
         struct bfin_can_priv *priv = netdev_priv(dev);
         struct bfin_can_regs __iomem *reg = priv->membase;
         int timeout = BFIN_CAN_TIMEOUT;
@@ -658,7 +656,7 @@ static int bfin_can_suspend(struct platform_device *pdev, pm_message_t mesg)
 
 static int bfin_can_resume(struct platform_device *pdev)
 {
-        struct net_device *dev = dev_get_drvdata(&pdev->dev);
+        struct net_device *dev = platform_get_drvdata(pdev);
         struct bfin_can_priv *priv = netdev_priv(dev);
         struct bfin_can_regs __iomem *reg = priv->membase;
 
diff --git a/drivers/net/can/cc770/cc770_isa.c b/drivers/net/can/cc770/cc770_isa.c
index 8eaaac81f320..87a47c0cfd49 100644
--- a/drivers/net/can/cc770/cc770_isa.c
+++ b/drivers/net/can/cc770/cc770_isa.c
@@ -265,7 +265,7 @@ static int cc770_isa_probe(struct platform_device *pdev)
         else
                 priv->clkout = COR_DEFAULT;
 
-        dev_set_drvdata(&pdev->dev, dev);
+        platform_set_drvdata(pdev, dev);
         SET_NETDEV_DEV(dev, &pdev->dev);
 
         err = register_cc770dev(dev);
@@ -293,12 +293,11 @@ static int cc770_isa_probe(struct platform_device *pdev)
 
 static int cc770_isa_remove(struct platform_device *pdev)
 {
-        struct net_device *dev = dev_get_drvdata(&pdev->dev);
+        struct net_device *dev = platform_get_drvdata(pdev);
         struct cc770_priv *priv = netdev_priv(dev);
         int idx = pdev->id;
 
         unregister_cc770dev(dev);
-        dev_set_drvdata(&pdev->dev, NULL);
 
         if (mem[idx]) {
                 iounmap(priv->reg_base);
diff --git a/drivers/net/can/cc770/cc770_platform.c b/drivers/net/can/cc770/cc770_platform.c
index d0f6bfc45aea..034bdd816a60 100644
--- a/drivers/net/can/cc770/cc770_platform.c
+++ b/drivers/net/can/cc770/cc770_platform.c
@@ -216,7 +216,7 @@ static int cc770_platform_probe(struct platform_device *pdev)
                  priv->reg_base, dev->irq, priv->can.clock.freq,
                  priv->cpu_interface, priv->bus_config, priv->clkout);
 
-        dev_set_drvdata(&pdev->dev, dev);
+        platform_set_drvdata(pdev, dev);
         SET_NETDEV_DEV(dev, &pdev->dev);
 
         err = register_cc770dev(dev);
@@ -240,7 +240,7 @@ exit_release_mem:
 
 static int cc770_platform_remove(struct platform_device *pdev)
 {
-        struct net_device *dev = dev_get_drvdata(&pdev->dev);
+        struct net_device *dev = platform_get_drvdata(pdev);
         struct cc770_priv *priv = netdev_priv(dev);
         struct resource *mem;
 
diff --git a/drivers/net/can/grcan.c b/drivers/net/can/grcan.c
index 9e9d0d628e7b..6aa737a24393 100644
--- a/drivers/net/can/grcan.c
+++ b/drivers/net/can/grcan.c
@@ -1646,7 +1646,7 @@ static int grcan_setup_netdev(struct platform_device *ofdev,
         if (err)
                 goto exit_free_candev;
 
-        dev_set_drvdata(&ofdev->dev, dev);
+        platform_set_drvdata(ofdev, dev);
 
         /* Reset device to allow bit-timing to be set. No need to call
          * grcan_reset at this stage. That is done in grcan_open.
@@ -1715,13 +1715,12 @@ exit_error:
 
 static int grcan_remove(struct platform_device *ofdev)
 {
-        struct net_device *dev = dev_get_drvdata(&ofdev->dev);
+        struct net_device *dev = platform_get_drvdata(ofdev);
         struct grcan_priv *priv = netdev_priv(dev);
 
         unregister_candev(dev); /* Will in turn call grcan_close */
 
         irq_dispose_mapping(dev->irq);
-        dev_set_drvdata(&ofdev->dev, NULL);
         netif_napi_del(&priv->napi);
         free_candev(dev);
 
diff --git a/drivers/net/can/mscan/mpc5xxx_can.c b/drivers/net/can/mscan/mpc5xxx_can.c
index 668850e441dc..5b0ee8ef5885 100644
--- a/drivers/net/can/mscan/mpc5xxx_can.c
+++ b/drivers/net/can/mscan/mpc5xxx_can.c
@@ -302,7 +302,7 @@ static int mpc5xxx_can_probe(struct platform_device *ofdev)
                 goto exit_free_mscan;
         }
 
-        dev_set_drvdata(&ofdev->dev, dev);
+        platform_set_drvdata(ofdev, dev);
 
         dev_info(&ofdev->dev, "MSCAN at 0x%p, irq %d, clock %d Hz\n",
                  priv->reg_base, dev->irq, priv->can.clock.freq);
@@ -321,11 +321,9 @@ exit_unmap_mem:
 
 static int mpc5xxx_can_remove(struct platform_device *ofdev)
 {
-        struct net_device *dev = dev_get_drvdata(&ofdev->dev);
+        struct net_device *dev = platform_get_drvdata(ofdev);
         struct mscan_priv *priv = netdev_priv(dev);
 
-        dev_set_drvdata(&ofdev->dev, NULL);
-
         unregister_mscandev(dev);
         iounmap(priv->reg_base);
         irq_dispose_mapping(dev->irq);
@@ -338,7 +336,7 @@ static int mpc5xxx_can_remove(struct platform_device *ofdev)
 static struct mscan_regs saved_regs;
 static int mpc5xxx_can_suspend(struct platform_device *ofdev, pm_message_t state)
 {
-        struct net_device *dev = dev_get_drvdata(&ofdev->dev);
+        struct net_device *dev = platform_get_drvdata(ofdev);
         struct mscan_priv *priv = netdev_priv(dev);
         struct mscan_regs *regs = (struct mscan_regs *)priv->reg_base;
 
@@ -349,7 +347,7 @@ static int mpc5xxx_can_suspend(struct platform_device *ofdev, pm_message_t state
 
 static int mpc5xxx_can_resume(struct platform_device *ofdev)
 {
-        struct net_device *dev = dev_get_drvdata(&ofdev->dev);
+        struct net_device *dev = platform_get_drvdata(ofdev);
         struct mscan_priv *priv = netdev_priv(dev);
         struct mscan_regs *regs = (struct mscan_regs *)priv->reg_base;
 
diff --git a/drivers/net/can/sja1000/sja1000_isa.c b/drivers/net/can/sja1000/sja1000_isa.c
index 5c8da4661489..06a282397fff 100644
--- a/drivers/net/can/sja1000/sja1000_isa.c
+++ b/drivers/net/can/sja1000/sja1000_isa.c
@@ -197,7 +197,7 @@ static int sja1000_isa_probe(struct platform_device *pdev)
         else
                 priv->cdr = CDR_DEFAULT;
 
-        dev_set_drvdata(&pdev->dev, dev);
+        platform_set_drvdata(pdev, dev);
         SET_NETDEV_DEV(dev, &pdev->dev);
 
         err = register_sja1000dev(dev);
@@ -225,12 +225,11 @@ static int sja1000_isa_probe(struct platform_device *pdev)
 
 static int sja1000_isa_remove(struct platform_device *pdev)
 {
-        struct net_device *dev = dev_get_drvdata(&pdev->dev);
+        struct net_device *dev = platform_get_drvdata(pdev);
         struct sja1000_priv *priv = netdev_priv(dev);
         int idx = pdev->id;
 
         unregister_sja1000dev(dev);
-        dev_set_drvdata(&pdev->dev, NULL);
 
         if (mem[idx]) {
                 iounmap(priv->reg_base);
diff --git a/drivers/net/can/sja1000/sja1000_of_platform.c b/drivers/net/can/sja1000/sja1000_of_platform.c
index 8e0c4a001939..31ad33911167 100644
--- a/drivers/net/can/sja1000/sja1000_of_platform.c
+++ b/drivers/net/can/sja1000/sja1000_of_platform.c
@@ -72,13 +72,11 @@ static void sja1000_ofp_write_reg(const struct sja1000_priv *priv,
 
 static int sja1000_ofp_remove(struct platform_device *ofdev)
 {
-        struct net_device *dev = dev_get_drvdata(&ofdev->dev);
+        struct net_device *dev = platform_get_drvdata(ofdev);
         struct sja1000_priv *priv = netdev_priv(dev);
         struct device_node *np = ofdev->dev.of_node;
         struct resource res;
 
-        dev_set_drvdata(&ofdev->dev, NULL);
-
         unregister_sja1000dev(dev);
         free_sja1000dev(dev);
         iounmap(priv->reg_base);
@@ -181,7 +179,7 @@ static int sja1000_ofp_probe(struct platform_device *ofdev)
                  priv->reg_base, dev->irq, priv->can.clock.freq,
                  priv->ocr, priv->cdr);
 
-        dev_set_drvdata(&ofdev->dev, dev);
+        platform_set_drvdata(ofdev, dev);
         SET_NETDEV_DEV(dev, &ofdev->dev);
 
         err = register_sja1000dev(dev);
diff --git a/drivers/net/can/sja1000/sja1000_platform.c b/drivers/net/can/sja1000/sja1000_platform.c
index 21619bb5b869..8e259c541036 100644
--- a/drivers/net/can/sja1000/sja1000_platform.c
+++ b/drivers/net/can/sja1000/sja1000_platform.c
@@ -135,7 +135,7 @@ static int sp_probe(struct platform_device *pdev)
                 break;
         }
 
-        dev_set_drvdata(&pdev->dev, dev);
+        platform_set_drvdata(pdev, dev);
         SET_NETDEV_DEV(dev, &pdev->dev);
 
         err = register_sja1000dev(dev);
@@ -161,12 +161,11 @@ static int sp_probe(struct platform_device *pdev)
 
 static int sp_remove(struct platform_device *pdev)
 {
-        struct net_device *dev = dev_get_drvdata(&pdev->dev);
+        struct net_device *dev = platform_get_drvdata(pdev);
         struct sja1000_priv *priv = netdev_priv(dev);
         struct resource *res;
 
         unregister_sja1000dev(dev);
-        dev_set_drvdata(&pdev->dev, NULL);
 
         if (priv->reg_base)
                 iounmap(priv->reg_base);