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net: macb: Check return value of dma_set_mask_and_coherent()

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Issue flagged by coverity. Add a safety check for the return value
of dma_set_mask_and_coherent, go to a safe exit if it returns error.

Link: https://scan7.scan.coverity.com/#/project-view/53936/11354?selectedIssue=1643754
Signed-off-by: Sergio Perez Gonzalez <sperezglz@gmail.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://patch.msgid.link/20250526032034.84900-1-sperezglz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Sergio Perez Gonzalez 2025-05-25 21:20:31 -06:00 committed by Jakub Kicinski
parent 126cd7852a
commit 3920a75880
1 changed files with 5 additions and 1 deletions
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6
drivers/net/ethernet/cadence/macb_main.c
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@ -5283,7 +5283,11 @@ static int macb_probe(struct platform_device *pdev)
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
if (GEM_BFEXT(DAW64, gem_readl(bp, DCFG6))) {
dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(44));
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(44));
if (err) {
dev_err(&pdev->dev, "failed to set DMA mask\n");
goto err_out_free_netdev;
}
bp->hw_dma_cap |= HW_DMA_CAP_64B;
}
#endif