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authorYi Zhang <yizhang@marvell.com>2013-06-14 01:21:45 -0400
committerSamuel Ortiz <sameo@linux.intel.com>2013-06-18 01:05:52 +0200
commit618fa57512c724d1d1a446162ad853249f8ac717 (patch)
tree7568b24b34cd808c41f753f597838f883df2e564 /drivers/mfd/88pm800.c
parentdc7d48635dd3c3fd5360238f7d2c697ff13abe7b (diff)
downloadlinux-618fa57512c724d1d1a446162ad853249f8ac717.tar.gz
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>
Diffstat (limited to 'drivers/mfd/88pm800.c')
-rw-r--r--drivers/mfd/88pm800.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/mfd/88pm800.c b/drivers/mfd/88pm800.c
index 582bda543520..b2f9f0f9deb3 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: