[PATCH V2 1/9] mfd: 88pm800: fix NULL pointer error

From: Chao Xie
Date: Fri Jun 14 2013 - 01:24:12 EST


From: Yi Zhang <yizhang@xxxxxxxxxxx>

move "device_800_init" to fix NULL pointer error when
calling "device_gpadc_init"

for "device_gpadc_init" needs "subchip->regmap_gpadc"
to set registers via regmap interface

Signed-off-by: Yi Zhang <yizhang@xxxxxxxxxxx>
Signed-off-by: Chao Xie <chao.xie@xxxxxxxxxxx>
---
drivers/mfd/88pm800.c | 18 ++++++++++--------
1 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/mfd/88pm800.c b/drivers/mfd/88pm800.c
index 582bda5..b2f9f0f 100644
--- 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:
--
1.7.4.1

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