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authorMarc Zyngier <maz@kernel.org>2020-09-03 19:02:37 +0300
committerLee Jones <lee.jones@linaro.org>2020-09-30 18:25:16 +0300
commit529a1101212a785c5df92c314b0e718287150c3b (patch)
tree50181f049af410967b87dd6aad5d917202878474 /drivers
parent05027df1b94fcb9e23e1af170733a570f5a90356 (diff)
downloadlinux-529a1101212a785c5df92c314b0e718287150c3b.tar.xz
mfd: syscon: Don't free allocated name for regmap_config
The name allocated for the regmap_config structure is freed pretty early, right after the registration of the MMIO region. Unfortunately, that doesn't follow the life cycle that debugfs expects, as it can access the name field long after the free has occurred. Move the free on the error path, and keep it forever otherwise. Fixes: e15d7f2b81d2 ("mfd: syscon: Use a unique name with regmap_config") Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mfd/syscon.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
index 75859e492984..7a660411c562 100644
--- a/drivers/mfd/syscon.c
+++ b/drivers/mfd/syscon.c
@@ -108,7 +108,6 @@ 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);
@@ -145,6 +144,7 @@ err_clk:
regmap_exit(regmap);
err_regmap:
iounmap(base);
+ kfree(syscon_config.name);
err_map:
kfree(syscon);
return ERR_PTR(ret);