From: Guenter Roeck <linux@roeck-us.net>
Date: Mon, 21 Apr 2014 17:38:08 +0000 (-0700)
Subject: hwmon: (ltc2945) Don't crash the kernel unnecessarily
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=f75d72309192e52ef9a3efb390b1c4f408c142df;p=openwrt%2Fstaging%2Fblogic.git

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 c104cc32989d..c9cddf5f056b 100644
--- 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);