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| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2021-12-03 06:31:06 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-14 12:57:10 +0300 |
| commit | 76e414aa2a24fe7025693d6cc95c7cfddac256c5 (patch) | |
| tree | 03ce23c96297a34c1bbafbba0a722c6b7c76c676 /drivers/net/ethernet/broadcom/bcm4908_enet.c | |
| parent | fe30b70ca84da9c4aca85c03ad86e7a9b89c5ded (diff) | |
| download | linux-76e414aa2a24fe7025693d6cc95c7cfddac256c5.tar.xz | |
net: bcm4908: Handle dma_set_coherent_mask error codes
commit 128f6ec95a282b2d8bc1041e59bf65810703fa44 upstream.
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bcm4908_enet.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bcm4908_enet.c | 4 |
1 files changed, 3 insertions, 1 deletions
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) |