The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 
0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
                ret = spear_smi_setup_banks(pdev, i, pdata->np[i]);
                if (ret) {
                        dev_err(&dev->pdev->dev, "bank setup failed\n");
-                       goto err_bank_setup;
+                       goto err_irq;
                }
        }
 
        return 0;
 
-err_bank_setup:
-       platform_set_drvdata(pdev, NULL);
 err_irq:
        clk_disable_unprepare(dev->clk);
 err:
        }
 
        clk_disable_unprepare(dev->clk);
-       platform_set_drvdata(pdev, NULL);
 
        return 0;
 }