backlight: ams369fg06: remove unnecessary NULL deference check

Remove unnecessary NULL deference check, because it was already checked in
ams369fg06_probe().  Also, unnecessary parentheses are removed in
ams369fg06_power_is_on().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 8 insertions, 24 deletions

diff --git a/drivers/video/backlight/ams369fg06.c b/drivers/video/backlight/ams369fg06.c
index 55b27921bf9e..b4bf130bc203 100644
--- a/drivers/video/backlight/ams369fg06.c
+++ b/drivers/video/backlight/ams369fg06.c
@@ -314,26 +314,17 @@ static int ams369fg06_ldi_disable(struct ams369fg06 *lcd)
 
 static int ams369fg06_power_is_on(int power)
 {
-        return ((power) <= FB_BLANK_NORMAL);
+        return power <= FB_BLANK_NORMAL;
 }
 
 static int ams369fg06_power_on(struct ams369fg06 *lcd)
 {
         int ret = 0;
-        struct lcd_platform_data *pd = NULL;
-        struct backlight_device *bd = NULL;
+        struct lcd_platform_data *pd;
+        struct backlight_device *bd;
 
         pd = lcd->lcd_pd;
-        if (!pd) {
-                dev_err(lcd->dev, "platform data is NULL.\n");
-                return -EFAULT;
-        }
-
         bd = lcd->bd;
-        if (!bd) {
-                dev_err(lcd->dev, "backlight device is NULL.\n");
-                return -EFAULT;
-        }
 
         if (!pd->power_on) {
                 dev_err(lcd->dev, "power_on is NULL.\n");
@@ -375,14 +366,10 @@ static int ams369fg06_power_on(struct ams369fg06 *lcd)
 
 static int ams369fg06_power_off(struct ams369fg06 *lcd)
 {
-        int ret = 0;
-        struct lcd_platform_data *pd = NULL;
+        int ret;
+        struct lcd_platform_data *pd;
 
         pd = lcd->lcd_pd;
-        if (!pd) {
-                dev_err(lcd->dev, "platform data is NULL\n");
-                return -EFAULT;
-        }
 
         ret = ams369fg06_ldi_disable(lcd);
         if (ret) {
@@ -392,11 +379,7 @@ static int ams369fg06_power_off(struct ams369fg06 *lcd)
 
         msleep(pd->power_off_delay);
 
-        if (!pd->power_on) {
-                dev_err(lcd->dev, "power_on is NULL.\n");
-                return -EFAULT;
-        } else
-                pd->power_on(lcd->ld, 0);
+        pd->power_on(lcd->ld, 0);
 
         return 0;
 }
@@ -535,8 +518,9 @@ static int ams369fg06_probe(struct spi_device *spi)
                 lcd->power = FB_BLANK_POWERDOWN;
 
                 ams369fg06_power(lcd, FB_BLANK_UNBLANK);
-        } else
+        } else {
                 lcd->power = FB_BLANK_UNBLANK;
+        }
 
         dev_set_drvdata(&spi->dev, lcd);