[PATCH] hwspinlock: fix warning from sparse

[Antonio Borneo]

Sparse triggers the following warnings:

drivers/hwspinlock/hwspinlock_core.c:392:9: warning: incorrect type in assignment (different address spaces)
drivers/hwspinlock/hwspinlock_core.c:392:9:    expected void **slot
drivers/hwspinlock/hwspinlock_core.c:392:9:    got void [noderef] __rcu **
drivers/hwspinlock/hwspinlock_core.c:392:9: warning: incorrect type in assignment (different address spaces)
drivers/hwspinlock/hwspinlock_core.c:392:9:    expected void **slot
drivers/hwspinlock/hwspinlock_core.c:392:9:    got void [noderef] __rcu **
drivers/hwspinlock/hwspinlock_core.c:393:48: warning: incorrect type in argument 1 (different address spaces)
drivers/hwspinlock/hwspinlock_core.c:393:48:    expected void [noderef] __rcu **slot
drivers/hwspinlock/hwspinlock_core.c:393:48:    got void **slot
drivers/hwspinlock/hwspinlock_core.c:397:30: warning: incorrect type in assignment (different address spaces)
drivers/hwspinlock/hwspinlock_core.c:397:30:    expected void **slot
drivers/hwspinlock/hwspinlock_core.c:397:30:    got void [noderef] __rcu **
drivers/hwspinlock/hwspinlock_core.c:392:9: warning: incorrect type in argument 1 (different address spaces)
drivers/hwspinlock/hwspinlock_core.c:392:9:    expected void [noderef] __rcu **slot
drivers/hwspinlock/hwspinlock_core.c:392:9:    got void **slot
drivers/hwspinlock/hwspinlock_core.c:392:9: warning: incorrect type in assignment (different address spaces)
drivers/hwspinlock/hwspinlock_core.c:392:9:    expected void **slot
drivers/hwspinlock/hwspinlock_core.c:392:9:    got void [noderef] __rcu **

all linked to the same missing '__rcu' at declaration of 'slot'.

Fix it!

Signed-off-by: Antonio Borneo <antonio.borneo@xxxxxxxxxxx>
---
 drivers/hwspinlock/hwspinlock_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwspinlock/hwspinlock_core.c b/drivers/hwspinlock/hwspinlock_core.c
index cc8e952a67727..50a875b2353f8 100644
--- a/drivers/hwspinlock/hwspinlock_core.c
+++ b/drivers/hwspinlock/hwspinlock_core.c
@@ -372,7 +372,7 @@ int of_hwspin_lock_get_id(struct device_node *np, int index)
 	struct of_phandle_args args;
 	struct hwspinlock *hwlock;
 	struct radix_tree_iter iter;
-	void **slot;
+	void __rcu **slot;
 	int id;
 	int ret;
 

base-commit: c369299895a591d96745d6492d4888259b004a9e
-- 
2.34.1