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| author | Ian Abbott <abbotti@mev.co.uk> | 2021-02-23 14:30:42 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-17 16:07:22 +0100 |
| commit | 62b7367c4d77755c4572f0f61f18262502084a5e (patch) | |
| tree | 136d37808a832da2041f6d804a3cfcc598b7bae5 /drivers/pinctrl | |
| parent | b5247b6661a55fb3de9c73a7227e630b218b35b5 (diff) | |
| download | linux-stable-62b7367c4d77755c4572f0f61f18262502084a5e.tar.gz linux-stable-62b7367c4d77755c4572f0f61f18262502084a5e.tar.bz2 linux-stable-62b7367c4d77755c4572f0f61f18262502084a5e.zip | |
staging: comedi: addi_apci_1032: Fix endian problem for COS sample
commit 25317f428a78fde71b2bf3f24d05850f08a73a52 upstream.
The Change-Of-State (COS) subdevice supports Comedi asynchronous
commands to read 16-bit change-of-state values. However, the interrupt
handler is calling `comedi_buf_write_samples()` with the address of a
32-bit integer `&s->state`. On bigendian architectures, it will copy 2
bytes from the wrong end of the 32-bit integer. Fix it by transferring
the value via a 16-bit integer.
Fixes: 6bb45f2b0c86 ("staging: comedi: addi_apci_1032: 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/20210223143055.257402-2-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/pinctrl')
0 files changed, 0 insertions, 0 deletions