mfd: 88pm800: Fix NULL pointer dereference

Move "device_800_init" to fix NULL pointer error when
calling "device_gpadc_init" as it needs "subchip->regmap_gpadc"
to set registers via regmap interface

Signed-off-by: Yi Zhang <yizhang@marvell.com>
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/mfd/88pm800.c b/drivers/mfd/88pm800.c
index 582bda5..b2f9f0f 100644 (file)
--- a/drivers/mfd/88pm800.c
+++ b/drivers/mfd/88pm800.c
@@ -528,24 +528,26 @@ static int pm800_probe(struct i2c_client *client,
        subchip->gpadc_page_addr = pdata->gpadc_page_addr;
        chip->subchip = subchip;
 
-       ret = device_800_init(chip, pdata);
-       if (ret) {
-               dev_err(chip->dev, "%s id 0x%x failed!\n", __func__, chip->id);
-               goto err_subchip_alloc;
-       }
-
        ret = pm800_pages_init(chip);
        if (ret) {
                dev_err(&client->dev, "pm800_pages_init failed!\n");
                goto err_page_init;
        }
 
+       ret = device_800_init(chip, pdata);
+       if (ret) {
+               dev_err(chip->dev, "%s id 0x%x failed!\n", __func__, chip->id);
+               goto err_device_init;
+       }
+
        if (pdata->plat_config)
                pdata->plat_config(chip, pdata);
 
+       return 0;
+
+err_device_init:
+       pm800_pages_exit(chip);
 err_page_init:
-       mfd_remove_devices(chip->dev);
-       device_irq_exit_800(chip);
 err_subchip_alloc:
        pm80x_deinit();
 out_init: