[PATCH 4/4] staging: axis-fifo: simplify error returns in axis_fifo_parse_dt()

[Josh Law <hlcj1234567@gmail.com>]

Replace redundant 'ret = -EIO; return ret;' patterns with direct
'return -EIO;' statements, and change the final 'return ret;' to
'return 0;' since success is the only path that reaches it.

Signed-off-by: Josh Law <objecting@objecting.org>
---
 drivers/staging/axis-fifo/axis-fifo.c | 20 +++++++-------------
 1 file changed, 7 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/axis-fifo/axis-fifo.c b/drivers/staging/axis-fifo/axis-fifo.c
index 7ca0404b0875..9aeb16d8a71f 100644
--- a/drivers/staging/axis-fifo/axis-fifo.c
+++ b/drivers/staging/axis-fifo/axis-fifo.c
@@ -403,8 +403,7 @@ static int axis_fifo_parse_dt(struct axis_fifo *fifo)
 		return ret;
 	} else if (value != 32) {
 		dev_err(fifo->dt_device, "xlnx,axi-str-rxd-tdata-width only supports 32 bits\n");
-		ret = -EIO;
-		return ret;
+		return -EIO;
 	}
 
 	ret = of_property_read_u32(node, "xlnx,axi-str-txd-tdata-width",
@@ -414,43 +413,38 @@ static int axis_fifo_parse_dt(struct axis_fifo *fifo)
 		return ret;
 	} else if (value != 32) {
 		dev_err(fifo->dt_device, "xlnx,axi-str-txd-tdata-width only supports 32 bits\n");
-		ret = -EIO;
-		return ret;
+		return -EIO;
 	}
 
 	ret = of_property_read_u32(node, "xlnx,rx-fifo-depth",
 				   &fifo->rx_fifo_depth);
 	if (ret) {
 		dev_err(fifo->dt_device, "missing xlnx,rx-fifo-depth property\n");
-		ret = -EIO;
-		return ret;
+		return -EIO;
 	}
 
 	ret = of_property_read_u32(node, "xlnx,tx-fifo-depth",
 				   &fifo->tx_fifo_depth);
 	if (ret) {
 		dev_err(fifo->dt_device, "missing xlnx,tx-fifo-depth property\n");
-		ret = -EIO;
-		return ret;
+		return -EIO;
 	}
 
 	ret = of_property_read_u32(node, "xlnx,use-rx-data",
 				   &fifo->has_rx_fifo);
 	if (ret) {
 		dev_err(fifo->dt_device, "missing xlnx,use-rx-data property\n");
-		ret = -EIO;
-		return ret;
+		return -EIO;
 	}
 
 	ret = of_property_read_u32(node, "xlnx,use-tx-data",
 				   &fifo->has_tx_fifo);
 	if (ret) {
 		dev_err(fifo->dt_device, "missing xlnx,use-tx-data property\n");
-		ret = -EIO;
-		return ret;
+		return -EIO;
 	}
 
-	return ret;
+	return 0;
 }
 
 static int axis_fifo_probe(struct platform_device *pdev)
-- 
2.43.0