UPSTREAM: pwm: Use kcalloc() instead of kzalloc()

kcalloc() should be preferred for allocations of arrays over kzalloc()
with multiplication.

Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
(cherry picked from commit 2907f8abb7ec3aec85ceaaf03dfbc16cca0018dc)

Change-Id: Ifa4619bcd5c0869e516ae7765bab7515b299c533
Signed-off-by: David Wu <david.wu@rock-chips.com>

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 5c961c640823aba3a2aff9dfb88a8f720246a937..8fbd7c5d34b6ba177dd1c6fcffe8585044472df0 100644 (file)
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -262,7 +262,7 @@ int pwmchip_add_with_polarity(struct pwm_chip *chip,
        if (ret < 0)
                goto out;
 
-       chip->pwms = kzalloc(chip->npwm * sizeof(*pwm), GFP_KERNEL);
+       chip->pwms = kcalloc(chip->npwm, sizeof(*pwm), GFP_KERNEL);
        if (!chip->pwms) {
                ret = -ENOMEM;
                goto out;