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authorAxel Lin <axel.lin@ingics.com>2015-08-17 15:59:17 +0800
committerLee Jones <lee.jones@linaro.org>2015-08-25 08:43:21 +0100
commit047ffbb27115b57759767145803b752518399d90 (patch)
treefde26b26a435bc40ec65eff3b81e795849503c46 /drivers/video
parent7ddbc2423c3301280b883bbb04b998203f30312c (diff)
backlight: sky81452: Remove unneeded use of IS_ERR_VALUE() macro
IS_ERR_VALUE() makes sense only *if* there could be valid values in negative error range. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/backlight/sky81452-backlight.c26
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c
index 052fa1bac03d..d414c7a3acf5 100644
--- a/drivers/video/backlight/sky81452-backlight.c
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -65,7 +65,7 @@ static int sky81452_bl_update_status(struct backlight_device *bd)
if (brightness > 0) {
ret = regmap_write(regmap, SKY81452_REG0, brightness - 1);
- if (IS_ERR_VALUE(ret))
+ if (ret < 0)
return ret;
return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN,
@@ -87,12 +87,12 @@ static ssize_t sky81452_bl_store_enable(struct device *dev,
int ret;
ret = kstrtoul(buf, 16, &value);
- if (IS_ERR_VALUE(ret))
+ if (ret < 0)
return ret;
ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN,
value << CTZ(SKY81452_EN));
- if (IS_ERR_VALUE(ret))
+ if (ret < 0)
return ret;
return count;
@@ -108,7 +108,7 @@ static ssize_t sky81452_bl_show_open_short(struct device *dev,
reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4;
ret = regmap_read(regmap, reg, &value);
- if (IS_ERR_VALUE(ret))
+ if (ret < 0)
return ret;
if (value & SKY81452_SHRT) {
@@ -136,7 +136,7 @@ static ssize_t sky81452_bl_show_fault(struct device *dev,
int ret;
ret = regmap_read(regmap, SKY81452_REG4, &value);
- if (IS_ERR_VALUE(ret))
+ if (ret < 0)
return ret;
*buf = 0;
@@ -196,7 +196,7 @@ static struct sky81452_bl_platform_data *sky81452_bl_parse_dt(
pdata->gpio_enable = of_get_gpio(np, 0);
ret = of_property_count_u32_elems(np, "led-sources");
- if (IS_ERR_VALUE(ret)) {
+ if (ret < 0) {
pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN);
} else {
num_entry = ret;
@@ -205,7 +205,7 @@ static struct sky81452_bl_platform_data *sky81452_bl_parse_dt(
ret = of_property_read_u32_array(np, "led-sources", sources,
num_entry);
- if (IS_ERR_VALUE(ret)) {
+ if (ret < 0) {
dev_err(dev, "led-sources node is invalid.\n");
return ERR_PTR(-EINVAL);
}
@@ -218,12 +218,12 @@ static struct sky81452_bl_platform_data *sky81452_bl_parse_dt(
ret = of_property_read_u32(np,
"skyworks,short-detection-threshold-volt",
&pdata->short_detection_threshold);
- if (IS_ERR_VALUE(ret))
+ if (ret < 0)
pdata->short_detection_threshold = 7;
ret = of_property_read_u32(np, "skyworks,current-limit-mA",
&pdata->boost_current_limit);
- if (IS_ERR_VALUE(ret))
+ if (ret < 0)
pdata->boost_current_limit = 2750;
of_node_put(np);
@@ -278,14 +278,14 @@ static int sky81452_bl_probe(struct platform_device *pdev)
if (gpio_is_valid(pdata->gpio_enable)) {
ret = devm_gpio_request_one(dev, pdata->gpio_enable,
GPIOF_OUT_INIT_HIGH, "sky81452-en");
- if (IS_ERR_VALUE(ret)) {
+ if (ret < 0) {
dev_err(dev, "failed to request GPIO. err=%d\n", ret);
return ret;
}
}
ret = sky81452_bl_init_device(regmap, pdata);
- if (IS_ERR_VALUE(ret)) {
+ if (ret < 0) {
dev_err(dev, "failed to initialize. err=%d\n", ret);
return ret;
}
@@ -302,8 +302,8 @@ static int sky81452_bl_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, bd);
- ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group);
- if (IS_ERR_VALUE(ret)) {
+ ret = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group);
+ if (ret < 0) {
dev_err(dev, "failed to create attribute. err=%d\n", ret);
return ret;
}