diff options
| author | Chanwoo Choi <cw00.choi@samsung.com> | 2012-08-21 15:16:23 +0900 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-09-16 00:33:09 +0200 |
| commit | b186b12487efc80c44f2f0d26cc26eb249cf1524 (patch) | |
| tree | e6ff10b5e12ffbbfdc4abaf88e4ad0e2a25146ef /drivers/extcon | |
| parent | d51f42d2c5b7e11b47876b8b5c53f0ac317fef24 (diff) | |
| download | linux-b186b12487efc80c44f2f0d26cc26eb249cf1524.tar.gz | |
mfd: MAX77693: Fix NULL pointer error when initializing irqs
This patch initialize register map of MUIC device because mfd driver of Maxim MAX77693 use regmap-muic instance of MUIC device when irqs of Maxim MAX77693 is initialized before call max77693-muic probe() function. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reported-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/extcon')
| -rw-r--r-- | drivers/extcon/extcon-max77693.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index 920a609b2c35..38f9e52f358b 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -669,13 +669,18 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev) } info->dev = &pdev->dev; info->max77693 = max77693; - info->max77693->regmap_muic = regmap_init_i2c(info->max77693->muic, - &max77693_muic_regmap_config); - if (IS_ERR(info->max77693->regmap_muic)) { - ret = PTR_ERR(info->max77693->regmap_muic); - dev_err(max77693->dev, - "failed to allocate register map: %d\n", ret); - goto err_regmap; + if (info->max77693->regmap_muic) + dev_dbg(&pdev->dev, "allocate register map\n"); + else { + info->max77693->regmap_muic = devm_regmap_init_i2c( + info->max77693->muic, + &max77693_muic_regmap_config); + if (IS_ERR(info->max77693->regmap_muic)) { + ret = PTR_ERR(info->max77693->regmap_muic); + dev_err(max77693->dev, + "failed to allocate register map: %d\n", ret); + goto err_regmap; + } } platform_set_drvdata(pdev, info); mutex_init(&info->mutex); |