i2c-algo-bit: Let user test buses without failing

[mirror_ubuntu-bionic-kernel.git] / drivers / i2c / algos / i2c-algo-bit.c

diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c
index d6d58684712bc8b68cafb662316fe123e53b270d..66bebfc81c2244adc04c6d5674d1ee6b4029f279 100644 (file)
--- a/drivers/i2c/algos/i2c-algo-bit.c
+++ b/drivers/i2c/algos/i2c-algo-bit.c
@@ -47,8 +47,8 @@
 /* ----- global variables ---------------------------------------------        */
 
 static int bit_test;   /* see if the line-setting functions work       */
-module_param(bit_test, bool, 0);
-MODULE_PARM_DESC(bit_test, "Test the lines of the bus to see if it is stuck");
+module_param(bit_test, int, S_IRUGO);
+MODULE_PARM_DESC(bit_test, "lines testing - 0 off; 1 report; 2 fail if stuck");
 
 #ifdef DEBUG
 static int i2c_debug = 1;
@@ -624,7 +624,7 @@ static int __i2c_bit_add_bus(struct i2c_adapter *adap,
 
        if (bit_test) {
                ret = test_bus(adap);
-               if (ret < 0)
+               if (bit_test >= 2 && ret < 0)
                        return -ENODEV;
        }