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>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c
index 331b85148680..fc3166dfcbfa 100644
--- 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);