linux-kernel - linux-next: build warning after merge of the hwmon-staging tree

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Date:   Mon, 1 Jul 2019 12:26:58 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Boyang Yu <byu@...sta.com>
Subject: linux-next: build warning after merge of the hwmon-staging tree

Hi all,

After merging the hwmon-staging tree, today's linux-next build (arm
multi_v7_defconfig) produced this warning:

drivers/hwmon/lm90.c: In function 'lm90_write_convrate':
drivers/hwmon/lm90.c:597:42: warning: 'config_stop' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (data->flags & LM90_PAUSE_FOR_CONFIG && config_orig != config_stop)
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/hwmon/lm90.c:598:3: warning: 'config_orig' may be used uninitialized in this function [-Wmaybe-uninitialized]
   i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1,
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        config_orig);
        ~~~~~~~~~~~~

Introduced by commit

  479a503fa073 ("hwmon: (lm90) Fix max6658 sporadic wrong temperature reading")

-- 
Cheers,
Stephen Rothwell

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