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author | Ian Abbott <abbotti@mev.co.uk> | 2021-02-23 15:30:48 +0100 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-10 09:23:29 +0100 |
commit | b39dfcced399d31e7c4b7341693b18e01c8f655e (patch) | |
tree | 6eba05d434f44f5e09c6b9f28b37a39e77715f5c /drivers/uio | |
parent | staging: comedi: dmm32at: Fix endian problem for AI command data (diff) | |
download | linux-b39dfcced399d31e7c4b7341693b18e01c8f655e.tar.xz linux-b39dfcced399d31e7c4b7341693b18e01c8f655e.zip |
staging: comedi: me4000: Fix endian problem for AI command data
The analog input subdevice supports Comedi asynchronous commands that
use Comedi's 16-bit sample format. However, the calls to
`comedi_buf_write_samples()` are passing the address of a 32-bit integer
variable. On bigendian machines, this will copy 2 bytes from the wrong
end of the 32-bit value. Fix it by changing the type of the variable
holding the sample value to `unsigned short`.
Fixes: de88924f67d1 ("staging: comedi: me4000: use comedi_buf_write_samples()")
Cc: <stable@vger.kernel.org> # 3.19+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20210223143055.257402-8-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/uio')
0 files changed, 0 insertions, 0 deletions