From: Jiasheng Jiang Date: Fri, 3 Dec 2021 03:31:06 +0000 (+0800) Subject: net: bcm4908: Handle dma_set_coherent_mask error codes X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=76e414aa2a24fe7025693d6cc95c7cfddac256c5;p=linux.git 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 Acked-by: Florian Fainelli Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/net/ethernet/broadcom/bcm4908_enet.c b/drivers/net/ethernet/broadcom/bcm4908_enet.c index 02a569500234c..376f81796a293 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)