From 6ed09e011b3f29322764df533cb4e9a8903ee03d Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Fri, 3 Dec 2021 11:31:06 +0800
Subject: [PATCH 11/37] net: bcm4908: Handle dma_set_coherent_mask error codes
Git-commit: 128f6ec95a282b2d8bc1041e59bf65810703fa44
Patch-mainline: v5.16-rc5
References: git-fixes
The return value of dma_set_coherent_mask() is not always 0.
To catch the exception in case that dma is not support the mask.
Fixes: 9d61d138ab30 ("net: broadcom: rename BCM4908 driver & update DT binding")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Denis Kirjanov <denis.kirjanov@suse.com>
---
drivers/net/ethernet/broadcom/bcm4908_enet.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/bcm4908_enet.c b/drivers/net/ethernet/broadcom/bcm4908_enet.c
index 02a569500234..376f81796a29 100644
--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
@@ -708,7 +708,9 @@ static int bcm4908_enet_probe(struct platform_device *pdev)
enet->irq_tx = platform_get_irq_byname(pdev, "tx");
- dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
+ err = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
+ if (err)
+ return err;
err = bcm4908_enet_dma_alloc(enet);
if (err)
--
2.16.4