Commit 27739e69 authored Jun 27, 2011 by Guenter Roeck

hwmon: (lm95241) Fix chip detection code



The LM95241 driver accepts every chip ID equal to or larger than 0xA4 as its
own, and other chips such as LM95245 use chip IDs in the accepted ID range.
This results in false chip detection.

Fix problem by accepting only the known LM95241 chip ID.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org # 2.6.30+

parent fe0d4220

drivers/hwmon/lm95241.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -339,7 +339,7 @@ static int lm95241_detect(struct i2c_client *new_client,
		if ((i2c_smbus_read_byte_data(new_client, LM95241_REG_R_MAN_ID)
		== MANUFACTURER_ID)
		&& (i2c_smbus_read_byte_data(new_client, LM95241_REG_R_CHIP_ID)
		>= DEFAULT_REVISION)) {
		== DEFAULT_REVISION)) {
		name = DEVNAME;
		} else {
		dev_dbg(&adapter->dev, "LM95241 detection failed at 0x%02x\n",