diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index a2bd4e6aff19..cb2843d34bea 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -634,7 +634,7 @@ static unsigned int defragment_dma_buffer(struct comedi_device *dev,
 /*
 ==============================================================================
 */
-static unsigned int move_block_from_dma(struct comedi_device *dev,
+static int move_block_from_dma(struct comedi_device *dev,
 					struct comedi_subdevice *s,
 					short *dma_buffer,
 					unsigned int num_samples)
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 3acf7e62bec4..19f79e8c497a 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -250,7 +250,7 @@ static unsigned int labpc_serial_in(struct comedi_device *dev);
 static unsigned int labpc_eeprom_read(struct comedi_device *dev,
 				      unsigned int address);
 static unsigned int labpc_eeprom_read_status(struct comedi_device *dev);
-static unsigned int labpc_eeprom_write(struct comedi_device *dev,
+static int labpc_eeprom_write(struct comedi_device *dev,
 				       unsigned int address,
 				       unsigned int value);
 static void write_caldac(struct comedi_device *dev, unsigned int channel,
@@ -1986,8 +1986,8 @@ static unsigned int labpc_eeprom_read(struct comedi_device *dev,
 	return value;
 }
 
-static unsigned int labpc_eeprom_write(struct comedi_device *dev,
-				       unsigned int address, unsigned int value)
+static int labpc_eeprom_write(struct comedi_device *dev,
+				unsigned int address, unsigned int value)
 {
 	const int write_enable_instruction = 0x6;
 	const int write_instruction = 0x2;