@@ -1262,8 +1262,10 @@ static int st_pctl_parse_functions(struct device_node *np,
grp = &info->groups[*grp_index];
*grp_index += 1;
ret = st_pctl_dt_parse_groups(child, grp, info, i++);
- if (ret)
+ if (ret) {
+ of_node_put(child);
return ret;
+ }
}
dev_info(info->dev, "Function[%d\t name:%s,\tgroups:%d]\n",
index, func->name, func->ngroups);
@@ -1623,8 +1625,10 @@ static int st_pctl_probe_dt(struct platform_device *pdev,
if (of_property_read_bool(child, "gpio-controller")) {
const char *bank_name = NULL;
ret = st_gpiolib_register_bank(info, bank, child);
- if (ret)
+ if (ret) {
+ of_node_put(child);
return ret;
+ }
k = info->banks[bank].range.pin_base;
bank_name = info->banks[bank].range.name;
@@ -1641,6 +1645,7 @@ static int st_pctl_probe_dt(struct platform_device *pdev,
i++, &grp_index);
if (ret) {
dev_err(&pdev->dev, "No functions found.\n");
+ of_node_put(child);
return ret;
}
}
Each iteration of for_each_child_of_node puts the previous node, but in the case of a return from the middle of the loop, there is no put, thus causing a memory leak. Hence add an of_node_put before the return in three places. Issue found with Coccinelle. Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com> --- drivers/pinctrl/pinctrl-st.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)