Pointer 'reg' returned from call to function 'fdt_getprop' may be
NULL, will be passed to function and may be dereferenced there by
passing argument 1 to function 'of_read_number'. So check pointer
'reg' first.
Signed-off-by: Alison Wang <alison.w...@freescale.com>
---
arch/arm/cpu/armv8/fsl-lsch3/fdt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/cpu/armv8/fsl-lsch3/fdt.c
b/arch/arm/cpu/armv8/fsl-lsch3/fdt.c
index 567c419..922e8a0 100644
--- a/arch/arm/cpu/armv8/fsl-lsch3/fdt.c
+++ b/arch/arm/cpu/armv8/fsl-lsch3/fdt.c
@@ -33,8 +33,8 @@ void ft_fixup_cpu(void *blob)
off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
while (off != -FDT_ERR_NOTFOUND) {
reg = (fdt32_t *)fdt_getprop(blob, off, "reg", 0);
- core_id = of_read_number(reg, addr_cells);
if (reg) {
+ core_id = of_read_number(reg, addr_cells);
if (core_id == 0 || (is_core_online(core_id))) {
val = spin_tbl_addr;
val += id_to_core(core_id) *
--
2.1.0.27.g96db324
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