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From: "corentin.labbe" <corentin.labbe@geomatys.fr>
To: tomaz.mertelj@guest.arnes.si
Cc: lm-sensors@lm-sensors.org, linux-kernel@vger.kernel.org
Subject: Re: [lm-sensors] [PATCH] hwmon: Driver for Texas Instruments amc6821 chip
Date: Wed, 02 Sep 2009 10:45:02 +0200	[thread overview]
Message-ID: <4A9E308E.60505@geomatys.fr> (raw)
In-Reply-To: <20090831_202450_066558.tomaz.mertelj@guest.arnes.si>

tomaz.mertelj@guest.arnes.si a écrit :
> I have crafted a hwmon driver for Texas Instruments amc6821 SMB-bus 2-
> channel temperature sensor, pwm controller. This is my first linux project 
> so some corrections will be necessary.
> 
> T. Mertelj

Hello

I have some warnings

  CC      drivers/hwmon/amc6821.o
drivers/hwmon/amc6821.c: In function `set_temp1_auto_point_temp':
drivers/hwmon/amc6821.c:390: warning: comparison is always true due to limited range of data type
drivers/hwmon/amc6821.c: In function `set_temp2_auto_point_temp':
drivers/hwmon/amc6821.c:391: warning: comparison is always true due to limited range of data type
drivers/hwmon/amc6821.c: In function `set_pwm1_auto_point_pwm':
drivers/hwmon/amc6821.c:408: warning: comparison is always true due to limited range of data type
drivers/hwmon/amc6821.c:419: warning: comparison is always true due to limited range of data type

you use tmp as a unsigned 8 bit so it is always >= 0 (it can't be below 0)
Prefer use:
s8 tmp;


Cordially

  parent reply	other threads:[~2009-09-02  8:47 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-31 20:24 [PATCH] hwmon: Driver for Texas Instruments amc6821 chip tomaz.mertelj
2009-09-01 17:56 ` [lm-sensors] " Andre Prendel
2009-09-02  8:20   ` Tomaz Mertelj
2009-09-02  8:45 ` corentin.labbe [this message]
2009-09-02 23:55 ` Andrew Morton
  -- strict thread matches above, loose matches on Subject: below --
2009-09-05 12:08 tomaz.mertelj
2009-09-09  0:06 ` Andrew Morton
2009-09-09  7:34   ` [lm-sensors] " Jean Delvare
2009-09-09  8:06     ` Andrew Morton
2009-09-09 12:24     ` Tomaz Mertelj
2009-09-09 12:45       ` Jean Delvare
2009-09-21 21:44     ` Andrew Morton
2009-09-22  5:59       ` Tomaz Mertelj
2009-09-22  6:02         ` Andrew Morton
2009-09-23  9:32 tomaz.mertelj
2009-09-30 19:44 ` Andrew Morton
2009-10-01  7:42 Tomaz Mertelj

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