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 <m-kariche...@ti.com>
Reviewed-by: Arnd Bergmann <a...@arndb.de>
---
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
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