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-rw-r--r--drivers/comedi/drivers/dt2811.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/comedi/drivers/dt2811.c b/drivers/comedi/drivers/dt2811.c
index dbb9f38da289..bcc4b5ef48e8 100644
--- a/drivers/comedi/drivers/dt2811.c
+++ b/drivers/comedi/drivers/dt2811.c
@@ -556,7 +556,8 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
if (!devpriv)
return -ENOMEM;
- ret = comedi_request_region(dev, it->options[0], 0x8);
+ ret = comedi_check_request_region(dev, it->options[0], 0x8,
+ 0x200, 0x3ff, 8);
if (ret)
return ret;