From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 20 Apr 2015 18:49:04 +0000 (-0700)
Subject: staging: comedi: comedi_bond: fix 'b_mask' calc in bonding_dio_insn_bits()
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~92^2~964
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b3ab6fbfd8625232c54d70e29f7274118726ba45;p=pandora-kernel.git

staging: comedi: comedi_bond: fix 'b_mask' calc in bonding_dio_insn_bits()

'b_chans' may be a valud up to 32. 'b_mask' is an unsigned int and a left shift of
more than 31 bits has undefined behavior. Fix the calc so it works correctly with
a 'b_chans' of 32..

Reported-by: coverity (CID 1192244)
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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