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authorIvan Zaentsev <ivan.zaentsev@wirenboard.ru>2021-01-21 12:30:21 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-01-27 16:59:16 +0300
commit2f6055c26f1913763eabc66c7c27d0693561e966 (patch)
tree84fd692bced8187050502677b844771f85aea088 /drivers/uio
parent2c104a469a4ce276117acda94ccf922c3b82d735 (diff)
downloadlinux-2f6055c26f1913763eabc66c7c27d0693561e966.tar.xz
w1: w1_therm: Fix conversion result for negative temperatures
DS18B20 device driver returns an incorrect value for negative temperatures due to a missing sign-extension in w1_DS18B20_convert_temp(). Fix by using s16 temperature value when converting to int. Fixes: 9ace0b4dab1c (w1: w1_therm: Add support for GXCAS GX20MH01 device.) Cc: stable <stable@vger.kernel.org> Reported-by: Paweł Marciniak <sunwire@gmail.com> Signed-off-by: Ivan Zaentsev <ivan.zaentsev@wirenboard.ru> Link: https://lore.kernel.org/r/20210121093021.224764-1-ivan.zaentsev@wirenboard.ru Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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