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pinctrl: core: Set ret to 0 when group is skipped

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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: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/e5203bae68eb94b4b8b4e67e5e7b4d86bb989724.1615534291.git.michal.simek@xilinx.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Michal Simek
2021-03-12 08:31:34 +01:00
committed by Linus Walleij
parent 47386ce36f
commit 6a37d75003
1 changed files with 2 additions and 0 deletions
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2
drivers/pinctrl/core.c
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@@ -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: