Uninitialized pointers with `__free` attribute can cause undefined
behaviour as the memory allocated to the pointer is freed automatically
when the pointer goes out of scope

powerpc/km82xx doesn't have any bugs related to this as of now, but,
it is better to initialize and assign pointers with `__free` attribute
in one statement to ensure proper scope-based cleanup

Reported-by: Dan Carpenter <redacted>
Closes: https://lore.kernel.org/all/aPiG_F5EBQUjZqsl@stanley.mountain/ (local)
Signed-off-by: Ally Heev <redacted>
---
Testing:
Successfully compiled the kernel with `allmodconfig`
---
 arch/powerpc/platforms/82xx/km82xx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/82xx/km82xx.c b/arch/powerpc/platforms/82xx/km82xx.c
index 99f0f0f4187672614f4f8ad46ab7906f7ad8078b..4ad223525e893c0de15540db2b2c4d239d6d841e 100644
--- a/arch/powerpc/platforms/82xx/km82xx.c
+++ b/arch/powerpc/platforms/82xx/km82xx.c

@@ -27,8 +27,8 @@
 
 static void __init km82xx_pic_init(void)
 {
-	struct device_node *np __free(device_node);
-	np = of_find_compatible_node(NULL, NULL, "fsl,pq2-pic");
+	struct device_node *np __free(device_node) = of_find_compatible_node(NULL,
+		NULL, "fsl,pq2-pic");