regulator: core: Use a struct to pass in regulator runtime configuration

Hello Mark Brown,

This is a semi-automatic email about new static checker warnings.

The patch c172708d38a4: "regulator: core: Use a struct to pass in regulator runtime configuration" from Apr 4, 2012, leads to the following Smatch complaint:

drivers/regulator/core.c:2860 regulator_register()
warn: variable dereferenced before check 'config' (see line 2856)

drivers/regulator/core.c
2855 struct regulator_dev *rdev;

  2856		struct device *dev = config->dev;
                                     ^^^^^^^^^^^

New dereference.

2857 int ret, i;
2858 const char *supply = NULL;
2859
2860 if (regulator_desc == NULL || config == NULL)

                                              ^^^^^^^^^^^^^^

New check.

  2861			return ERR_PTR(-EINVAL);
  2862	

regards,
dan carpenter