From: Limeng <meng...@windriver.com>
The commit 529a1101212a("mfd: syscon: Don't free allocated name
for regmap_config") doesn't free the allocated name field of struct
regmap_config, but introduce a memory leak. There is another
commit 94cc89eb8fa5("regmap: debugfs: Fix handling of name string
for debugfs init delays") fixing this debugfs init issue from root
cause. With this fixing, the name field in struct regmap_debugfs_node
is removed. When initialize debugfs for syscon driver, the name
field of struct regmap_config is not used anymore. So, the allocated
name field of struct regmap_config is need to be freed directly after
regmap initialization to avoid memory leak.
Fixes: 529a1101212a("mfd: syscon: Don't free allocated name for regmap_config")
Cc: Marc Zyngier <m...@kernel.org>
Cc: sta...@vger.kernel.org
Signed-off-by: Meng Li <meng...@windriver.com>
---
drivers/mfd/syscon.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
index ca465794ea9c..df5cebb372a5 100644
--- a/drivers/mfd/syscon.c
+++ b/drivers/mfd/syscon.c
@@ -108,6 +108,7 @@ static struct syscon *of_syscon_register(struct device_node
*np, bool check_clk)
syscon_config.max_register = resource_size(&res) - reg_io_width;
regmap = regmap_init_mmio(NULL, base, &syscon_config);
+ kfree(syscon_config.name);
if (IS_ERR(regmap)) {
pr_err("regmap init failed\n");
ret = PTR_ERR(regmap);
@@ -144,7 +145,6 @@ static struct syscon *of_syscon_register(struct device_node
*np, bool check_clk)
regmap_exit(regmap);
err_regmap:
iounmap(base);
- kfree(syscon_config.name);
err_map:
kfree(syscon);
return ERR_PTR(ret);
--
2.17.1
