diff options
| author | Axel Lin <axel.lin@gmail.com> | 2012-06-20 16:13:15 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-06-20 11:18:38 +0100 |
| commit | baf73e2c4e25aa57a7bd5df90a93e65be0542c74 (patch) | |
| tree | b09c903aa74c239f30a550f8de6abb433ad991bd /drivers/regulator/lp872x.c | |
| parent | f503071b03dcac6908fb7e051cfc9c45bea084c0 (diff) | |
| download | linux-rpi-baf73e2c4e25aa57a7bd5df90a93e65be0542c74.tar.gz linux-rpi-baf73e2c4e25aa57a7bd5df90a93e65be0542c74.tar.bz2 linux-rpi-baf73e2c4e25aa57a7bd5df90a93e65be0542c74.zip | |
regulator: lp872x: Return -EINVAL if pdata is NULL
Return -EINVAL if pdata is NULL, otherwise we have NULL dereference bug.
This patch also moves the code checking pdata earlier in lp872x_probe.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/lp872x.c')
| -rw-r--r-- | drivers/regulator/lp872x.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c index d51d09852041..e8f54efb1985 100644 --- a/drivers/regulator/lp872x.c +++ b/drivers/regulator/lp872x.c @@ -785,11 +785,6 @@ static int lp872x_config(struct lp872x *lp) struct lp872x_platform_data *pdata = lp->pdata; int ret; - if (!pdata) { - dev_warn(lp->dev, "no platform data\n"); - return 0; - } - if (!pdata->update_config) return 0; @@ -889,6 +884,11 @@ static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id) [LP8725] = LP8725_NUM_REGULATORS, }; + if (!pdata) { + dev_warn(&cl->dev, "no platform data\n"); + return -EINVAL; + } + lp = devm_kzalloc(&cl->dev, sizeof(struct lp872x), GFP_KERNEL); if (!lp) goto err_mem; |