pwm: spear: fix check on pwmchip_add() return value

pwmchip_add() returns zero on success and a negative value on error,
so the condition of the check must be inverted.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

diff --git a/drivers/pwm/pwm-spear.c b/drivers/pwm/pwm-spear.c
index b4f6d0df5f2d306f8f5f452b6b8ea9f3cf5d814f..cffa1e390320936abfc61c969b20c71ddf13b29b 100644 (file)
--- a/drivers/pwm/pwm-spear.c
+++ b/drivers/pwm/pwm-spear.c
@@ -220,7 +220,7 @@ static int spear_pwm_probe(struct platform_device *pdev)
        }
 
        ret = pwmchip_add(&pc->chip);
-       if (!ret) {
+       if (ret < 0) {
                clk_unprepare(pc->clk);
                dev_err(&pdev->dev, "pwmchip_add() failed: %d\n", ret);
        }