From 05e59e5fb0064c97a1c10921ecd549f2d4a58565 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 09 Oct 2024 06:14:40 +0000
Subject: [PATCH] add REDIRECT

---
 kernel/drivers/base/regmap/regcache.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/kernel/drivers/base/regmap/regcache.c b/kernel/drivers/base/regmap/regcache.c
index 7f4b3b6..7fdd702 100644
--- a/kernel/drivers/base/regmap/regcache.c
+++ b/kernel/drivers/base/regmap/regcache.c
@@ -343,6 +343,9 @@
 	const char *name;
 	bool bypass;
 
+	if (WARN_ON(map->cache_type == REGCACHE_NONE))
+		return -EINVAL;
+
 	BUG_ON(!map->cache_ops);
 
 	map->lock(map->lock_arg);
@@ -412,6 +415,9 @@
 	const char *name;
 	bool bypass;
 
+	if (WARN_ON(map->cache_type == REGCACHE_NONE))
+		return -EINVAL;
+
 	BUG_ON(!map->cache_ops);
 
 	map->lock(map->lock_arg);

--
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