staging: comedi: Use '"%s:", __func__' instead of function name

Replace all occurrences of functions' names in strings by a reference
to __func__, to improve robustness. Problem found with checkpatch.
Signed-off-by: Eisha Chen-yen-su <chenyensu0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/ni_mio_common.c

@@ -1965,7 +1965,8 @@ static void ni_cmd_set_mite_transfer(struct mite_ring *ring,
 	if (nbytes > sdev->async->prealloc_bufsz) {
 		if (cmd->stop_arg > 0)
 			dev_err(sdev->device->class_dev,
-				"ni_cmd_set_mite_transfer: tried exact data transfer limits greater than buffer size\n");
+				"%s: tried exact data transfer limits greater than buffer size\n",
+				__func__);
 
 		/*
 		 * we can only transfer up to the size of the buffer.  In this
@@ -1978,7 +1979,8 @@ static void ni_cmd_set_mite_transfer(struct mite_ring *ring,
 	mite_init_ring_descriptors(ring, sdev, nbytes);
 #else
 	dev_err(sdev->device->class_dev,
-		"ni_cmd_set_mite_transfer: exact data transfer limits not implemented yet without DMA\n");
+		"%s: exact data transfer limits not implemented yet without DMA\n",
+		__func__);
 #endif
 }
 
@@ -4687,7 +4689,7 @@ static int cs5529_do_conversion(struct comedi_device *dev,
 	retval = cs5529_wait_for_idle(dev);
 	if (retval) {
 		dev_err(dev->class_dev,
-			"timeout or signal in cs5529_do_conversion()\n");
+			"timeout or signal in %s()\n", __func__);
 		return -ETIME;
 	}
 	status = ni_ao_win_inw(dev, NI67XX_CAL_STATUS_REG);

drivers/staging/comedi/drivers/quatech_daqp_cs.c

@@ -248,7 +248,7 @@ static irqreturn_t daqp_interrupt(int irq, void *dev_id)
 
 	if (loop_limit <= 0) {
 		dev_warn(dev->class_dev,
-			 "loop_limit reached in daqp_interrupt()\n");
+			 "loop_limit reached in %s()\n", __func__);
 		s->async->events |= COMEDI_CB_ERROR;
 	}