diff options
| author | Ian Abbott <abbotti@mev.co.uk> | 2026-01-30 16:47:28 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-04-02 15:49:36 +0200 |
| commit | a02b67b23e2f1839498b040675c9c8ad864b6aea (patch) | |
| tree | 4c0c99dc76da8c80fec54655837d4471f0b9b682 /drivers | |
| parent | cb51837eeeddac2da41f4c202597c534bb9d8dc9 (diff) | |
comedi: adq12b: Add sanity checks for I/O base address
The "adq12b" driver uses an admin-supplied configuration option
(`it->options[0]`) to configure the I/O port base address of the ADQ12-B
board. It currently allows any base address to be configured but the
hardware only supports the following base addresses (set by an on-board
jumper): 0x300, 0x320, 0x340, 0x360, 0x380, 0x3A0.
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/20260130170416.49994-4-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/comedi/drivers/adq12b.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/comedi/drivers/adq12b.c b/drivers/comedi/drivers/adq12b.c index 19d765182006..f8fa5c6ecdff 100644 --- a/drivers/comedi/drivers/adq12b.c +++ b/drivers/comedi/drivers/adq12b.c @@ -179,7 +179,8 @@ static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it) struct comedi_subdevice *s; int ret; - ret = comedi_request_region(dev, it->options[0], 0x10); + ret = comedi_check_request_region(dev, it->options[0], 0x10, + 0x300, 0x3af, 0x20); if (ret) return ret; |