regulator: pwm-regulator: Fix ' comparison between signed and unsigned integer' warning

drivers/regulator/pwm-regulator.c:
  In function ‘pwm_regulator_init_table’:
drivers/regulator/pwm-regulator.c:171:14:
  warning: comparison between signed and unsigned integer expressions [-Wsign-compare]

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c
index 331b8514868055e29fd10ec50206ed5fe77e5009..fc3166dfcbfaa455b5105ef8e7715d3e17c56d6b 100644 (file)
--- a/drivers/regulator/pwm-regulator.c
+++ b/drivers/regulator/pwm-regulator.c
@@ -163,7 +163,7 @@ static int pwm_regulator_init_table(struct platform_device *pdev,
 {
        struct device_node *np = pdev->dev.of_node;
        struct pwm_voltages *duty_cycle_table;
-       int length = 0;
+       unsigned int length = 0;
        int ret;
 
        of_find_property(np, "voltage-table", &length);