hwmon/f71805f: Fix the device address decoding

The lowest 3 bits are ignored, and the chip decodes all 8 addresses,
not only the 2 it needs.

Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/hwmon/f71805f.c b/drivers/hwmon/f71805f.c
index 37ba421789bc..a272cae8f60e 100644
--- a/drivers/hwmon/f71805f.c
+++ b/drivers/hwmon/f71805f.c
@@ -102,9 +102,9 @@ superio_exit(int base)
  * ISA constants
  */
 
-#define REGION_LENGTH           2
-#define ADDR_REG_OFFSET         0
-#define DATA_REG_OFFSET         1
+#define REGION_LENGTH           8
+#define ADDR_REG_OFFSET         5
+#define DATA_REG_OFFSET         6
 
 /*
  * Registers
@@ -1359,6 +1359,7 @@ static int __init f71805f_find(int sioaddr, unsigned short *address,
                        "skipping\n");
                 goto exit;
         }
+        *address &= ~(REGION_LENGTH - 1);       /* Ignore 3 LSB */
 
         err = 0;
         printk(KERN_INFO DRVNAME ": Found %s chip at %#x, revision %u\n",