1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c
index ec601bbf91b9..f284ecbb9ca8 100644
--- a/drivers/hwmon/lm78.c
+++ b/drivers/hwmon/lm78.c
@@ -613,6 +613,12 @@ static int lm78_detect(struct i2c_adapter *adapter, int address, int kind)
                         err = -ENODEV;
                         goto ERROR2;
                 }
+                /* Explicitly prevent the misdetection of Winbond chips */
+                i = lm78_read_value(data, 0x4f);
+                if (i == 0xa3 || i == 0x5c) {
+                        err = -ENODEV;
+                        goto ERROR2;
+                }
         }
 
         /* Determine the chip type. */