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hwmon: (adt7470) Fix writes to temperature limit registers
authorGuenter Roeck <linux@roeck-us.net>
Thu, 17 Jul 2014 00:40:31 +0000 (17:40 -0700)
committerGuenter Roeck <linux@roeck-us.net>
Thu, 17 Jul 2014 04:18:47 +0000 (21:18 -0700)
commitde12d6f4b10b21854441f5242dcb29ea96181e58
treebd197e8e568310bb71c6469f7d9242ed8b056df1tree | snapshot
parent6b00f440dd678d786389a7100a2e03fe44478431commit | diff
hwmon: (adt7470) Fix writes to temperature limit registers

Temperature limit registers are signed. Limits therefore need
to be clamped to (-128, 127) degrees C and not to (0, 255)
degrees C.

Without this fix, writing a limit of 128 degrees C sets the
actual limit to -128 degrees C.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org
Reviewed-by: Axel Lin <axel.lin@ingics.com>
drivers/hwmon/adt7470.c diff | blob | history
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