From 8ddfe4108e0a160f078adc96827e3809beb4d451 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Sat, 9 Jul 2016 13:35:00 +0900 Subject: [PATCH] i2c: improve error messages in i2c_register_adapter() Switch to WARN if no adapter name is given, otherwise we won't know who missed to do that. Add error message if device registration fails. Update error message for missing algo to match style of the others. Signed-off-by: Wolfram Sang Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-core.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index ef6def72a654..8e07e3be4880 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -1604,14 +1604,11 @@ static int i2c_register_adapter(struct i2c_adapter *adap) } /* Sanity checks */ - if (unlikely(adap->name[0] == '\0')) { - pr_err("i2c-core: Attempt to register an adapter with " - "no name!\n"); + if (WARN(!adap->name[0], "i2c adapter has no name")) goto out_list; - } - if (unlikely(!adap->algo)) { - pr_err("i2c-core: Attempt to register adapter '%s' with " - "no algo!\n", adap->name); + + if (!adap->algo) { + pr_err("i2c-core: adapter '%s': no algo supplied!\n", adap->name); goto out_list; } @@ -1634,8 +1631,11 @@ static int i2c_register_adapter(struct i2c_adapter *adap) adap->dev.bus = &i2c_bus_type; adap->dev.type = &i2c_adapter_type; res = device_register(&adap->dev); - if (res) + if (res) { + pr_err("i2c-core: adapter '%s': can't register device (%d)\n", + adap->name, res); goto out_list; + } dev_dbg(&adap->dev, "adapter [%s] registered\n", adap->name); -- 2.39.5