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-rw-r--r--drivers/staging/comedi/comedidev.h1
-rw-r--r--drivers/staging/comedi/drivers.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
index f3999f5e8091..58e58a32e93d 100644
--- a/drivers/staging/comedi/comedidev.h
+++ b/drivers/staging/comedi/comedidev.h
@@ -253,6 +253,7 @@ struct comedi_device {
struct comedi_subdevice *subdevices;
/* dumb */
+ void __iomem *mmio;
unsigned long iobase;
unsigned long iolen;
unsigned int irq;
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
index 42ddf1332ce8..9ada130f2a76 100644
--- a/drivers/staging/comedi/drivers.c
+++ b/drivers/staging/comedi/drivers.c
@@ -121,6 +121,7 @@ static void comedi_device_detach_cleanup(struct comedi_device *dev)
dev->driver = NULL;
dev->board_name = NULL;
dev->board_ptr = NULL;
+ dev->mmio = NULL;
dev->iobase = 0;
dev->iolen = 0;
dev->ioenabled = false;