Commit 827900c5 authored by Jean Delvare's avatar Jean Delvare
Browse files

i2c: Fix probability check 



The new unified probing function differs from the original code, and
the preliminary test whether probing is possible must be updated
accordingly.

Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
parent e467e104

drivers/i2c/i2c-core.c

+3 −4
Original line number Diff line number Diff line
@@ -1428,13 +1428,12 @@ static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver) 
	if (!(adapter->class & driver->class))

		goto exit_free;



	/* Stop here if we can't use SMBUS_QUICK */

	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_QUICK)) {

	/* Stop here if the bus doesn't support probing */

	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE)) {

		if (address_list[0] == I2C_CLIENT_END)

			goto exit_free;



		dev_warn(&adapter->dev, "SMBus Quick command not supported, "

			 "can't probe for chips\n");

		dev_warn(&adapter->dev, "Probing not supported\n");

		err = -EOPNOTSUPP;

		goto exit_free;

	}