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authorGuenter Roeck <guenter.roeck@ericsson.com>2011-06-27 11:22:46 -0700
committerGuenter Roeck <guenter.roeck@ericsson.com>2011-07-08 17:52:59 -0700
commit27739e694a3c34b5e371575d74e500d60111c689 (patch)
tree53daf18502775272d26174ccd96c8c2678806751
parentfe0d42203cb5616eeff68b14576a0f7e2dd56625 (diff)
downloadlinux-linaro-27739e694a3c34b5e371575d74e500d60111c689.tar.gz
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+
-rw-r--r--drivers/hwmon/lm95241.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hwmon/lm95241.c b/drivers/hwmon/lm95241.c
index 1a6dfb6df1e..01c638e31e0 100644
--- a/drivers/hwmon/lm95241.c
+++ b/drivers/hwmon/lm95241.c
@@ -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",