usb: chipidea: ci13xxx_imx: remove reg_vbus

There is no need to keep a 'reg_vbus' indirection, so get rid of it.

The motivation for doing this change is that in the case of error, the current
code only sets the local reg_vbus to NULL instead of updating the private
structure 'data->reg_vbus'.

Updating only the local reg_vbus is wrong, since we currently check for
data->reg_vbus in the ci13xxx_imx_remove() function.

In order to avoid such issue, just use 'data->reg_vbus' directly.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 6 insertions, 8 deletions

diff --git a/drivers/usb/chipidea/ci13xxx_imx.c b/drivers/usb/chipidea/ci13xxx_imx.c
index 24f46e1f043a..1b100c8e3835 100644
--- a/drivers/usb/chipidea/ci13xxx_imx.c
+++ b/drivers/usb/chipidea/ci13xxx_imx.c
@@ -101,7 +101,6 @@ static int ci13xxx_imx_probe(struct platform_device *pdev)
         struct platform_device *phy_pdev;
         struct device_node *phy_np;
         struct resource *res;
-        struct regulator *reg_vbus;
         int ret;
 
         if (of_find_property(pdev->dev.of_node, "fsl,usbmisc", NULL)
@@ -150,18 +149,17 @@ static int ci13xxx_imx_probe(struct platform_device *pdev)
         }
 
         /* we only support host now, so enable vbus here */
-        reg_vbus = devm_regulator_get(&pdev->dev, "vbus");
-        if (!IS_ERR(reg_vbus)) {
-                ret = regulator_enable(reg_vbus);
+        data->reg_vbus = devm_regulator_get(&pdev->dev, "vbus");
+        if (!IS_ERR(data->reg_vbus)) {
+                ret = regulator_enable(data->reg_vbus);
                 if (ret) {
                         dev_err(&pdev->dev,
                                 "Failed to enable vbus regulator, err=%d\n",
                                 ret);
                         goto put_np;
                 }
-                data->reg_vbus = reg_vbus;
         } else {
-                reg_vbus = NULL;
+                data->reg_vbus = NULL;
         }
 
         ci13xxx_imx_platdata.phy = data->phy;
@@ -210,8 +208,8 @@ static int ci13xxx_imx_probe(struct platform_device *pdev)
 disable_device:
         ci13xxx_remove_device(data->ci_pdev);
 err:
-        if (reg_vbus)
-                regulator_disable(reg_vbus);
+        if (data->reg_vbus)
+                regulator_disable(data->reg_vbus);
 put_np:
         if (phy_np)
                 of_node_put(phy_np);