| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.15 052/171] net: bcm4908: Handle dma_set_coherent_mask error codes | Date | Mon, 13 Dec 2021 10:29:27 +0100 |
| |
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
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> --- drivers/net/ethernet/broadcom/bcm4908_enet.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- 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 pla 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)
|