[PATCH 3/3] powerpc/boot: Fix treeboot-akebono CPU node lookup check

[Thorsten Blum]

fdt_node_offset_by_prop_value() returns a negative error code on
failure - fix the check accordingly.

Fixes: 2a2c74b2efcb ("IBM Akebono: Add the Akebono platform")
Signed-off-by: Thorsten Blum <thorsten.b...@linux.dev>
---
 arch/powerpc/boot/treeboot-akebono.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/boot/treeboot-akebono.c 
b/arch/powerpc/boot/treeboot-akebono.c
index e3cc2599869c..1b529037480f 100644
--- a/arch/powerpc/boot/treeboot-akebono.c
+++ b/arch/powerpc/boot/treeboot-akebono.c
@@ -146,7 +146,7 @@ void platform_init(char *userdata)
 
        node = fdt_node_offset_by_prop_value(_dtb_start, -1, "device_type",
                                             "cpu", sizeof("cpu"));
-       if (!node)
+       if (node < 0)
                fatal("Cannot find cpu node\n");
        timebase = fdt_getprop(_dtb_start, node, "timebase-frequency", &size);
        if (timebase && (size == 4))