From: Andy Lutomirski <luto@amacapital.net>
Date: Wed, 17 Jul 2013 20:27:59 +0000 (-0700)
Subject: i2c: Improve logging on failure to probe for ->class devices
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=d63a9e851c2c007d9129b8dbfc1af24722bd18bd;p=deliverable%2Flinux.git

i2c: Improve logging on failure to probe for ->class devices

While writing the i2c-imc driver, I noticed that the warning message
when the i2c core can't figure out how to probe is mostly useless.
This trivial patch improves it.

Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index d075df641c2c..3d9ca2d3d77e 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1665,7 +1665,8 @@ static int i2c_default_probe(struct i2c_adapter *adap, unsigned short addr)
 		err = i2c_smbus_xfer(adap, addr, 0, I2C_SMBUS_READ, 0,
 				     I2C_SMBUS_BYTE, &dummy);
 	else {
-		dev_warn(&adap->dev, "No suitable probing method supported\n");
+		dev_warn(&adap->dev, "No suitable probing method supported for address 0x%02X\n",
+			 addr);
 		err = -EOPNOTSUPP;
 	}