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of: address: Report of_dma_get_range() errors meaningfully

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If we failed to translate a DMA address, at least show the offending
address rather than the uninitialised contents of the destination
argument.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Robin Murphy 2019-07-04 14:54:12 +01:00 committed by Rob Herring
parent 6e6faf6374
commit 76dd7068e3
1 changed files with 2 additions and 2 deletions
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4
drivers/of/address.c
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@ -955,8 +955,8 @@ int of_dma_get_range(struct device_node *np, u64 *dma_addr, u64 *paddr, u64 *siz
dmaaddr = of_read_number(ranges, naddr);
*paddr = of_translate_dma_address(np, ranges);
if (*paddr == OF_BAD_ADDR) {
pr_err("translation of DMA address(%pad) to CPU address failed node(%pOF)\n",
dma_addr, np);
pr_err("translation of DMA address(%llx) to CPU address failed node(%pOF)\n",
dmaaddr, np);
ret = -EINVAL;
goto out;
}