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dm: Fix error handling for dev_read_addr_ptr

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dev_read_addr_ptr had different semantics depending on whether OF_LIVE was
enabled. This patch converts both implementations to return NULL on error,
and converts all call sites which check for FDT_ADDR_T_NONE to check for
NULL instead. This patch also removes the call to map_physmem, since we
have dev_remap_addr* for those semantics.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Sean Anderson
2020-06-24 06:41:13 -04:00
committed by Andes
parent 4a3390f1d3
commit 082faeb865
5 changed files with 7 additions and 5 deletions
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2
drivers/core/read.c
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@@ -167,7 +167,7 @@ void *dev_read_addr_ptr(const struct udevice *dev)
{
fdt_addr_t addr = dev_read_addr(dev);
return (addr == FDT_ADDR_T_NONE) ? NULL : map_sysmem(addr, 0);
return (addr == FDT_ADDR_T_NONE) ? NULL : (void *)(uintptr_t)addr;
}
void *dev_remap_addr(const struct udevice *dev)