From 6382a0614144901af1cbbfdf9b9a618f5dfb8548 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Wed, 16 Jan 2013 14:53:56 +0100 Subject: 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 Signed-off-by: Samuel Ortiz --- drivers/mfd/twl-core.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers/mfd/twl-core.c') 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]; -- cgit v1.1