When call to of_dma_get_range() fails, the code currently set size to dev->coherent_dma_mask instead of dev->coherent_dma_mask + 1. Fix this to make the code consistent with the case when size is obtained from dma-range property.
Signed-off-by: Murali Karicheri <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]> --- drivers/of/platform.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/of/platform.c b/drivers/of/platform.c index a54ec10..af9aef1 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -185,7 +185,7 @@ static void of_dma_configure(struct device *dev) ret = of_dma_get_range(dev->of_node, &dma_addr, &paddr, &size); if (ret < 0) { dma_addr = offset = 0; - size = dev->coherent_dma_mask; + size = dev->coherent_dma_mask + 1; } else { offset = PFN_DOWN(paddr - dma_addr); dev_dbg(dev, "dma_pfn_offset(%#08lx)\n", offset); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
