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-rw-r--r--drivers/comedi/drivers/dt2801.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/comedi/drivers/dt2801.c b/drivers/comedi/drivers/dt2801.c
index 230d25010f58..d790e69f98a0 100644
--- a/drivers/comedi/drivers/dt2801.c
+++ b/drivers/comedi/drivers/dt2801.c
@@ -540,7 +540,8 @@ static int dt2801_attach(struct comedi_device *dev, struct comedi_devconfig *it)
int ret = 0;
int n_ai_chans;
- ret = comedi_request_region(dev, it->options[0], 0x2);
+ ret = comedi_check_request_region(dev, it->options[0], 0x2,
+ 0x200, 0x3ff, 2);
if (ret)
return ret;