| From | Kamal Mostafa <> | Subject | [PATCH 3.19.y-ckt 149/164] of/fdt: fix error checking for earlycon address | Date | Wed, 2 Dec 2015 09:00:00 -0800 |
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3.19.8-ckt11 -stable review patch. If anyone has any objections, please let me know.
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From: Masahiro Yamada <yamada.masahiro@socionext.com>
commit 3f5ceec96470050d20d7281d49985e3b1cfc3995 upstream.
fdt_translate_address() returns OF_BAD_ADDR on error. It is defined as a u64 value, so the variable "addr" should be defined as u64 as well.
Fixes: fb11ffe74c79 ("of/fdt: add FDT serial scanning for earlycon") Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/of/fdt.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 5100742..0159b48 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -788,14 +788,15 @@ int __init early_init_dt_scan_chosen_serial(void) return -ENODEV; while (match->compatible[0]) { - unsigned long addr; + u64 addr; + if (fdt_node_check_compatible(fdt, offset, match->compatible)) { match++; continue; } addr = fdt_translate_address(fdt, offset); - if (!addr) + if (addr == OF_BAD_ADDR) return -ENXIO; of_setup_earlycon(addr, match->data); -- 1.9.1
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