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-rw-r--r--drivers/comedi/drivers/pcmad.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/comedi/drivers/pcmad.c b/drivers/comedi/drivers/pcmad.c
index 976eda43881b..fd26b1eed1db 100644
--- a/drivers/comedi/drivers/pcmad.c
+++ b/drivers/comedi/drivers/pcmad.c
@@ -106,7 +106,8 @@ static int pcmad_attach(struct comedi_device *dev, struct comedi_devconfig *it)
struct comedi_subdevice *s;
int ret;
- ret = comedi_request_region(dev, it->options[0], 0x04);
+ ret = comedi_check_request_region(dev, it->options[0], 0x04,
+ 0, 0x3ff, 4);
if (ret)
return ret;