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powerpc: Add missing error check to prom_find_boot_cpu()
[firefly-linux-kernel-4.4.55.git]
/
arch
/
powerpc
/
kernel
/
prom_init.c
diff --git
a/arch/powerpc/kernel/prom_init.c
b/arch/powerpc/kernel/prom_init.c
index 7b89e7b305e6b15fb51cfe5cf601dec100e83b7a..3139533640fc8e263a08c9f4570b7bd9fd3accc4 100644
(file)
--- a/
arch/powerpc/kernel/prom_init.c
+++ b/
arch/powerpc/kernel/prom_init.c
@@
-2664,6
+2664,9
@@
static void __init prom_find_boot_cpu(void)
cpu_pkg = call_prom("instance-to-package", 1, 1, prom_cpu);
+ if (!PHANDLE_VALID(cpu_pkg))
+ return;
+
prom_getprop(cpu_pkg, "reg", &rval, sizeof(rval));
prom.cpu = be32_to_cpu(rval);