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powerpc/boot: Fix simpleboot CPU node lookup check

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

Fixes: d2477b5cc8 ("[POWERPC] bootwrapper: Add a firmware-independent simpleboot target.")
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260702211554.56923-4-thorsten.blum@linux.dev
This commit is contained in:
Thorsten Blum 2026-07-02 23:15:55 +02:00 committed by Madhavan Srinivasan
parent 263e5159e0
commit c824ab6568
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/boot/simpleboot.c
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@ -68,7 +68,7 @@ void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
/* finally, setup the timebase */
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))