diff options
| author | William Breathitt Gray <vilhelm.gray@gmail.com> | 2018-04-20 09:50:20 -0400 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-04-30 10:48:08 +0200 |
| commit | e026646c178d8292de563fbecc247bada059c282 (patch) | |
| tree | cced27a85129ff2a04f885ab8ac51248751db1d0 /drivers/gpio/gpio-pcie-idio-24.c | |
| parent | 304440aa96c6e5cc37eaa7a46ff4dd862e4c21be (diff) | |
| download | linux-e026646c178d8292de563fbecc247bada059c282.tar.bz2 | |
gpio: pcie-idio-24: Fix off-by-one error in get_multiple loop
The PCIe-IDIO-24 features 8 bits of TTL GPIO which may be configured for
output or input. This patch fixes an off-by-one error in the loop
conditional for the get_multiple callback so that the TTL GPIO are
handled.
Fixes: ca37081595a2 ("gpio: pcie-idio-24: Implement get_multiple/set_multiple callbacks")
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-pcie-idio-24.c')
| -rw-r--r-- | drivers/gpio/gpio-pcie-idio-24.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-pcie-idio-24.c b/drivers/gpio/gpio-pcie-idio-24.c index 3e77c2a9a9fd..f953541e7890 100644 --- a/drivers/gpio/gpio-pcie-idio-24.c +++ b/drivers/gpio/gpio-pcie-idio-24.c @@ -217,7 +217,7 @@ static int idio_24_gpio_get_multiple(struct gpio_chip *chip, bitmap_zero(bits, chip->ngpio); /* get bits are evaluated a gpio port register at a time */ - for (i = 0; i < ARRAY_SIZE(ports); i++) { + for (i = 0; i < ARRAY_SIZE(ports) + 1; i++) { /* gpio offset in bits array */ bits_offset = i * gpio_reg_size; |