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authorJames Jones <jajones@nvidia.com>2010-11-24 00:21:37 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-11-24 20:17:46 +0000
commit0e91ec0c06d2cd15071a6021c94840a50e6671aa (patch)
tree1d0cb8bbdbab498af1f2513d9f0637105b2d2c3b /drivers/video
parent28c22d7dc99486ef4186dde41d5260e75b3076f7 (diff)
downloadlinux-0e91ec0c06d2cd15071a6021c94840a50e6671aa.tar.gz
ARM: 6482/2: Fix find_next_zero_bit and related assembly
The find_next_bit, find_first_bit, find_next_zero_bit
and find_first_zero_bit functions were not properly
clamping to the maxbit argument at the bit level. They
were instead only checking maxbit at the byte level.
To fix this, add a compare and a conditional move
instruction to the end of the common bit-within-the-
byte code used by all the functions and be sure not to
clobber the maxbit argument before it is used.

Cc: <stable@kernel.org>
Reviewed-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: James Jones <jajones@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/video')
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