[PATCH net-next] net: lan966x: cleanup error handling in lan966x_fdma_rx_alloc_page_pool()

[Dan Carpenter <error27@gmail.com>]

This code works, but there are a few things to tidy up:
1. No need to an unlikely() because IS_ERR() already has an unlikely()
   built in.
2. No need to use PTR_ERR_OR_ZERO() because it's not an error pointer.
3. Use the returned error code directly instead of using groveling in
   rx->page_pool to find it.

Signed-off-by: Dan Carpenter <error27@gmail.com>
---
 drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c b/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c
index f8ce735a7fc0..2d1c38289bb4 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c
@@ -91,7 +91,7 @@ static int lan966x_fdma_rx_alloc_page_pool(struct lan966x_rx *rx)
 		pp_params.dma_dir = DMA_BIDIRECTIONAL;
 
 	rx->page_pool = page_pool_create(&pp_params);
-	if (unlikely(IS_ERR(rx->page_pool)))
+	if (IS_ERR(rx->page_pool))
 		return PTR_ERR(rx->page_pool);
 
 	for (int i = 0; i < lan966x->num_phys_ports; ++i) {
@@ -106,7 +106,7 @@ static int lan966x_fdma_rx_alloc_page_pool(struct lan966x_rx *rx)
 					   rx->page_pool);
 	}
 
-	return PTR_ERR_OR_ZERO(rx->page_pool);
+	return 0;
 }
 
 static int lan966x_fdma_rx_alloc(struct lan966x_rx *rx)
@@ -115,8 +115,9 @@ static int lan966x_fdma_rx_alloc(struct lan966x_rx *rx)
 	struct fdma *fdma = &rx->fdma;
 	int err;
 
-	if (lan966x_fdma_rx_alloc_page_pool(rx))
-		return PTR_ERR(rx->page_pool);
+	err = lan966x_fdma_rx_alloc_page_pool(rx);
+	if (err)
+		return err;
 
 	err = fdma_alloc_coherent(lan966x->dev, fdma);
 	if (err) {
-- 
2.53.0