We use the local variable 'length' instead of the lengthy
'pwm_backlight->backlight.brightness_max' within pwm_backlight_parse_dt().
---
drivers/video/backlight-pwm.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/video/backlight-pwm.c b/drivers/video/backlight-pwm.c
index 53cf4e9..5ff40a9 100644
--- a/drivers/video/backlight-pwm.c
+++ b/drivers/video/backlight-pwm.c
@@ -133,12 +133,11 @@ static int pwm_backlight_parse_dt(struct device_d *dev,
if (!prop)
return -EINVAL;
- pwm_backlight->backlight.brightness_max = length / sizeof(u32);
+ length /= sizeof(u32);
/* read brightness levels from DT property */
- if (pwm_backlight->backlight.brightness_max > 0) {
- size_t size = sizeof(*pwm_backlight->levels) *
- pwm_backlight->backlight.brightness_max;
+ if (length > 0) {
+ size_t size = sizeof(*pwm_backlight->levels) * length;
pwm_backlight->levels = xzalloc(size);
if (!pwm_backlight->levels)
@@ -146,11 +145,11 @@ static int pwm_backlight_parse_dt(struct device_d *dev,
ret = of_property_read_u32_array(node, "brightness-levels",
pwm_backlight->levels,
- pwm_backlight->backlight.brightness_max);
+ length);
if (ret < 0)
return ret;
- for (i = 0; i < pwm_backlight->backlight.brightness_max; i++)
+ for (i = 0; i < length; i++)
if (pwm_backlight->levels[i] > pwm_backlight->scale)
pwm_backlight->scale = pwm_backlight->levels[i];
--
2.9.1
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