[PATCH] pinctrl: core: Set ret to 0 when group is skipped

[Michal Simek <michal.simek@xilinx.com>]

Static analyzer tool found that the ret variable is not initialized but
code expects ret value >=0 when pinconf is skipped in the first pinmux
loop. The same expectation is for pinmux in a pinconf loop.
That's why initialize ret to 0 to avoid uninitialized ret value in first
loop or reusing ret value from first loop in second.

Addresses-Coverity: ("Uninitialized variables")
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
CC: Colin Ian King <colin.king@canonical.com>
CC: Dan Carpenter <dan.carpenter@oracle.com>
---

 drivers/pinctrl/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index f5c32d2a3c91..136c323d855e 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -1266,6 +1266,7 @@ static int pinctrl_commit_state(struct pinctrl *p, struct pinctrl_state *state)
 			break;
 		case PIN_MAP_TYPE_CONFIGS_PIN:
 		case PIN_MAP_TYPE_CONFIGS_GROUP:
+			ret = 0;
 			break;
 		default:
 			ret = -EINVAL;
@@ -1284,6 +1285,7 @@ static int pinctrl_commit_state(struct pinctrl *p, struct pinctrl_state *state)
 	list_for_each_entry(setting, &state->settings, node) {
 		switch (setting->type) {
 		case PIN_MAP_TYPE_MUX_GROUP:
+			ret = 0;
 			break;
 		case PIN_MAP_TYPE_CONFIGS_PIN:
 		case PIN_MAP_TYPE_CONFIGS_GROUP:
-- 
2.30.1