hwmon: (ltc2945) Don't crash the kernel unnecessarily

An implementation error should not crash the kernel if it is avoidable.
Replace BUG() with WARN_ONCE().

Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/ltc2945.c b/drivers/hwmon/ltc2945.c
index c104cc3..c9cddf5 100644 (file)
--- a/drivers/hwmon/ltc2945.c
+++ b/drivers/hwmon/ltc2945.c
@@ -1,4 +1,4 @@
-/*
+    /*
  * Driver for Linear Technology LTC2945 I2C Power Monitor
  *
  * Copyright (c) 2014 Guenter Roeck
@@ -314,8 +314,8 @@ static ssize_t ltc2945_reset_history(struct device *dev,
                reg = LTC2945_MAX_ADIN_H;
                break;
        default:
-               BUG();
-               break;
+               WARN_ONCE(1, "Bad register: 0x%x\n", reg);
+               return -EINVAL;
        }
        /* Reset maximum */
        ret = regmap_bulk_write(regmap, reg, buf_max, num_regs);