diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2013-02-27 17:25:15 +0200 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2013-03-02 13:20:21 +0000 |
| commit | e97f9b5277afeabb54892ebc6f68500098467ba1 (patch) | |
| tree | 598ee12c94ce73155d8046cfe16210dc09c40014 | |
| parent | 24d7628fe8b10bb3770a11ddf71719613832a298 (diff) | |
| download | linux-e97f9b5277afeabb54892ebc6f68500098467ba1.tar.bz2 | |
gpio/gpio-ich: fix ichx_gpio_check_available() return what callers expect
ichx_gpio_check_available() returns either 0 or -ENXIO depending on whether
the given GPIO is available or not. However, callers of this function treat
the return value as boolean:
...
if (!ichx_gpio_check_available(gpio, nr))
return -ENXIO;
which erroneusly fails when the GPIO is available and not vice versa.
Fix this by making the function return boolean as expected by the callers.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| -rw-r--r-- | drivers/gpio/gpio-ich.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c index 6f2306db8591..f9dbd503fc40 100644 --- a/drivers/gpio/gpio-ich.c +++ b/drivers/gpio/gpio-ich.c @@ -128,9 +128,9 @@ static int ichx_read_bit(int reg, unsigned nr) return data & (1 << bit) ? 1 : 0; } -static int ichx_gpio_check_available(struct gpio_chip *gpio, unsigned nr) +static bool ichx_gpio_check_available(struct gpio_chip *gpio, unsigned nr) { - return (ichx_priv.use_gpio & (1 << (nr / 32))) ? 0 : -ENXIO; + return ichx_priv.use_gpio & (1 << (nr / 32)); } static int ichx_gpio_direction_input(struct gpio_chip *gpio, unsigned nr) |