[PATCH RFC 3/4] regcache: rbtree: use the regmap scoped lock guard

["Peng Fan (OSS)" <peng.fan@oss.nxp.com>]

From: Peng Fan <peng.fan@nxp.com>

Convert the open-coded map->lock()/map->unlock() pair in rbtree_show()
to guard(regmap)(). The locked region spans the whole function body up
to the single return, so a function-scope guard drops the manual
unlock with no functional change.

Assisted-by: Claude:claude-opus-4.8
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 drivers/base/regmap/regcache-rbtree.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c
index 520d5f8ba3cd..e2feed6dbecf 100644
--- a/drivers/base/regmap/regcache-rbtree.c
+++ b/drivers/base/regmap/regcache-rbtree.c
@@ -141,7 +141,7 @@ static int rbtree_show(struct seq_file *s, void *ignored)
 	int registers = 0;
 	int this_registers, average;
 
-	map->lock(map->lock_arg);
+	guard(regmap)(map);
 
 	mem_size = sizeof(*rbtree_ctx);
 
@@ -168,8 +168,6 @@ static int rbtree_show(struct seq_file *s, void *ignored)
 	seq_printf(s, "%d nodes, %d registers, average %d registers, used %zu bytes\n",
 		   nodes, registers, average, mem_size);
 
-	map->unlock(map->lock_arg);
-
 	return 0;
 }
 

-- 
2.51.0