diff options
| author | Laszlo Papp <lpapp@kde.org> | 2013-12-17 12:49:51 +0000 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2014-01-21 08:28:10 +0000 |
| commit | c1ec8fc308bb8171c76b5bed7f4028b6290e53f9 (patch) | |
| tree | cae119ca4ac650a4e0ca1e3822115a4c87b5ac77 /drivers/mfd/max8997.c | |
| parent | db9ef449aaa550389008c2020fba02e4440ce24b (diff) | |
| download | lwn-c1ec8fc308bb8171c76b5bed7f4028b6290e53f9.tar.gz lwn-c1ec8fc308bb8171c76b5bed7f4028b6290e53f9.zip | |
mfd: max8997: Enforce mfd_add_devices() return value check
The original author provided a random return value check which is
redundant and seemingly floating. This patch not only relocates
the check so it is more clearly associated with the invokation of
mfd_add_devices(), but provides a store for the error value. We
also print a meaningful message on error before returning.
Signed-off-by: Laszlo Papp <lpapp@kde.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/max8997.c')
| -rw-r--r-- | drivers/mfd/max8997.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c index 1b80e51c2e73..10141698ff94 100644 --- a/drivers/mfd/max8997.c +++ b/drivers/mfd/max8997.c @@ -228,18 +228,19 @@ static int max8997_i2c_probe(struct i2c_client *i2c, max8997_irq_init(max8997); - mfd_add_devices(max8997->dev, -1, max8997_devs, + ret = mfd_add_devices(max8997->dev, -1, max8997_devs, ARRAY_SIZE(max8997_devs), NULL, 0, NULL); + if (ret < 0) { + dev_err(max8997->dev, "failed to add MFD devices %d\n", ret); + goto err_mfd; + } /* * TODO: enable others (flash, muic, rtc, battery, ...) and * check the return value */ - if (ret < 0) - goto err_mfd; - /* MAX8997 has a power button input. */ device_init_wakeup(max8997->dev, pdata->wakeup); |