diff options
| author | Ian Abbott <abbotti@mev.co.uk> | 2026-01-30 19:47:30 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-04-02 16:49:36 +0300 |
| commit | 81c2e0c8b7933b434163bcddb544094f609d4e1c (patch) | |
| tree | 109063f97703988b772ae42bbab8e1f13596ddc2 | |
| parent | 254ae67d39ab49945aa1ce0a711a499f63965a2c (diff) | |
| download | linux-81c2e0c8b7933b434163bcddb544094f609d4e1c.tar.xz | |
comedi: aio_iiro_16: Add sanity checks for I/O base address
The "aio_iiro_16" driver uses an admin-supplied configuration option
(`it->options[0]`) to configure the I/O port base address of a supported
board (IIRO-16). It currently allows any base address to be configured
but the hardware only supports base addresses (set by on-board jumpers)
in the range 0x100 to 0x3F8 on 8-byte boundaries.
Add a sanity check to ensure the device is not configured at an
unsupported base address.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://patch.msgid.link/20260130170416.49994-6-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/comedi/drivers/aio_iiro_16.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/comedi/drivers/aio_iiro_16.c b/drivers/comedi/drivers/aio_iiro_16.c index 739cc4db52ac..00d0bb0f6256 100644 --- a/drivers/comedi/drivers/aio_iiro_16.c +++ b/drivers/comedi/drivers/aio_iiro_16.c @@ -167,7 +167,8 @@ static int aio_iiro_16_attach(struct comedi_device *dev, struct comedi_subdevice *s; int ret; - ret = comedi_request_region(dev, it->options[0], 0x8); + ret = comedi_check_request_region(dev, it->options[0], 0x8, + 0x100, 0x3ff, 0x8); if (ret) return ret; |