diff options
| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2013-01-16 14:53:56 +0100 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2013-02-14 00:22:51 +0100 |
| commit | 6382a0614144901af1cbbfdf9b9a618f5dfb8548 (patch) | |
| tree | 3bc1be702cd90b9fbfdff1bae045865aee537a15 /drivers/mfd/twl-core.c | |
| parent | 7e2e6c5758de94ec22686b30e7b906a3ddcd9896 (diff) | |
| download | op-kernel-dev-6382a0614144901af1cbbfdf9b9a618f5dfb8548.zip op-kernel-dev-6382a0614144901af1cbbfdf9b9a618f5dfb8548.tar.gz | |
mfd: twl-core: Move 'inuse' check early at probe time
We can fail earlier in case multiple instance of the twl-core is tried to
be loaded.
The twl-core by design only supports one instance.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/twl-core.c')
| -rw-r--r-- | drivers/mfd/twl-core.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index 547fed5..1827088 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -1170,6 +1170,12 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) return -EINVAL; } + if (inuse) { + dev_dbg(&client->dev, "only one instance of %s allowed\n", + DRIVER_NAME); + return -EBUSY; + } + pdev = platform_device_alloc(DRIVER_NAME, -1); if (!pdev) { dev_err(&client->dev, "can't alloc pdev\n"); @@ -1188,12 +1194,6 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) goto free; } - if (inuse) { - dev_dbg(&client->dev, "driver is already in use\n"); - status = -EBUSY; - goto free; - } - if ((id->driver_data) & TWL6030_CLASS) { twl_id = TWL6030_CLASS_ID; twl_map = &twl6030_map[0]; |
