[PATCH] pinctrl: mediatek: fix check on EINT_NA comparison
From: Colin King <hidden>
Date: 2018-09-25 09:56:00
Also in:
kernel-janitors, linux-gpio, linux-mediatek, lkml
Subsystem:
pin control subsystem, pin controller - mediatek, the rest · Maintainers:
Linus Walleij, Sean Wang, Linus Torvalds
From: Colin Ian King <redacted>
Currently, the check on desc->eint.eint_n == EINT_NA is always false
because this is comparing a u16 to -1 which can never be true. Fix
this by casting EINT_NA to u16.
Detected by CoverityScan, CID#1473610 ("Operands don't affect result")
Fixes: fb5fa8dc151b ("pinctrl: mediatek: extend struct mtk_pin_desc to pinctrl-mtk-common-v2.c")
Signed-off-by: Colin Ian King <redacted>
---
drivers/pinctrl/mediatek/pinctrl-moore.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pinctrl/mediatek/pinctrl-moore.c b/drivers/pinctrl/mediatek/pinctrl-moore.c
index c27597cd3931..4aa6def1f785 100644
--- a/drivers/pinctrl/mediatek/pinctrl-moore.c
+++ b/drivers/pinctrl/mediatek/pinctrl-moore.c@@ -476,7 +476,7 @@ static int mtk_gpio_to_irq(struct gpio_chip *chip, unsigned int offset) desc = (const struct mtk_pin_desc *)&hw->soc->pins[offset]; - if (desc->eint.eint_n == EINT_NA) + if (desc->eint.eint_n == (u16)EINT_NA) return -ENOTSUPP; return mtk_eint_find_irq(hw->eint, desc->eint.eint_n);
@@ -493,7 +493,7 @@ static int mtk_gpio_set_config(struct gpio_chip *chip, unsigned int offset, if (!hw->eint || pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE || - desc->eint.eint_n == EINT_NA) + desc->eint.eint_n == (u16)EINT_NA) return -ENOTSUPP; debounce = pinconf_to_config_argument(config);
--
2.17.1