From 114fd18397eb0eacf51ac784f7d5c929b8499715 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 3 Sep 2006 22:25:04 +0200 Subject: i2c: Warn on i2c client creation failure i2c: Warn on i2c client creation failure Warn when an i2c client creation fails. If we don't, the user will never know something wrong happened, as i2c client creation is typically called through an attach_adapter callback, those return value we currently ignore for technical reasons. Signed-off-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/i2c-core.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 88dd803174a..01233f0f777 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -707,11 +707,16 @@ static int i2c_probe_address(struct i2c_adapter *adapter, int addr, int kind, /* Finally call the custom detection function */ err = found_proc(adapter, addr, kind); - /* -ENODEV can be returned if there is a chip at the given address but it isn't supported by this chip driver. We catch it here as this isn't an error. */ - return (err == -ENODEV) ? 0 : err; + if (err == -ENODEV) + err = 0; + + if (err) + dev_warn(&adapter->dev, "Client creation failed at 0x%x (%d)\n", + addr, err); + return err; } int i2c_probe(struct i2c_adapter *adapter, -- cgit v1.2.3