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| author | Ian Abbott <abbotti@mev.co.uk> | 2021-02-23 14:30:45 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-17 16:43:50 +0100 |
| commit | d079c097128d3d1bd0c6925a2be3207547d013aa (patch) | |
| tree | 22f05e0940295820a40f63e878d948bfe5f0fcee /drivers/mailbox | |
| parent | e83788603af8d1d274c8b8e797bdc8b510929f6a (diff) | |
| download | linux-stable-d079c097128d3d1bd0c6925a2be3207547d013aa.tar.gz linux-stable-d079c097128d3d1bd0c6925a2be3207547d013aa.tar.bz2 linux-stable-d079c097128d3d1bd0c6925a2be3207547d013aa.zip | |
staging: comedi: das6402: Fix endian problem for AI command data
commit 1c0f20b78781b9ca50dc3ecfd396d0db5b141890 upstream.
The analog input subdevice supports Comedi asynchronous commands that
use Comedi's 16-bit sample format. However, the call to
`comedi_buf_write_samples()` is 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: d1d24cb65ee3 ("staging: comedi: das6402: read analog input samples in interrupt handler")
Cc: <stable@vger.kernel.org> # 3.19+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20210223143055.257402-5-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mailbox')
0 files changed, 0 insertions, 0 deletions