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Date: Thu, 10 Jan 2013 11:18:07 -0800
From: Guenter Roeck <linux@roeck-us.net>
To: linux-kernel@vger.kernel.org
Cc: Andy Whitcroft <apw@canonical.com>, Joe Perches <joe@perches.com>
Subject: checkpatch.pl error: Use of uninitialized value $max (line 3407,3410)
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Hi all,

I get the following error when running checkpatch.pl:

scripts/checkpatch.pl -f drivers/hwmon/da9055-hwmon.c
Use of uninitialized value $max in string eq at scripts/checkpatch.pl line 3407.
Use of uninitialized value $max in pattern match (m//) at scripts/checkpatch.pl line 3410.
total: 0 errors, 0 warnings, 336 lines checked

drivers/hwmon/da9055-hwmon.c has no obvious style problems and is ready for
submission.

The checkpatch code creating the error was introduced with commit 4a273195
(checkpatch: check usleep_range() arguments).

Is this a but in checkpatch, or is something wrong in my environment ?

Thanks,
Guenter