diff options
| author | Haojian Zhuang <haojian.zhuang@linaro.org> | 2013-02-17 19:42:48 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-16 21:48:29 -0700 |
| commit | aabc281d18eef3106c9f58c06e466a9ffdf33759 (patch) | |
| tree | 44758f095fede0ef38d5018b078cc4d312bd2eb7 | |
| parent | b5caeae8219e3b90000e7413e2e0a272db8e2c20 (diff) | |
gpio: fix wrong checking condition for gpio range
commit ad4e1a7caf937ad395ced585ca85a7d14395dc80 upstream.
If index++ calculates from 0, the checking condition of "while
(index++)" fails & it doesn't check any more. It doesn't follow
the loop that used at here.
Replace it by endless loop at here. Then it keeps parsing
"gpio-ranges" property until it ends.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpio/gpiolib-of.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index d542a141811a..ea537faa9ccb 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -228,7 +228,7 @@ static void of_gpiochip_add_pin_range(struct gpio_chip *chip) if (!np) return; - do { + for (;; index++) { ret = of_parse_phandle_with_args(np, "gpio-ranges", "#gpio-range-cells", index, &pinspec); if (ret) @@ -257,8 +257,7 @@ static void of_gpiochip_add_pin_range(struct gpio_chip *chip) if (ret) break; - - } while (index++); + } } #else |