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Subject[PATCH] mfd: syscon: Fix leak of syscon name
Date
regmap_init_mmio duplicate the name and never free the provided name in
the sysconf_config. Always free the name instead of freeing only on
error to fix error from kmemleak generated by any syscon user.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.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 c6f139b2e0c0..765c0210cb52 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);
--
2.31.1
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