The patch titled
Subject: backlight: ams369fg06: remove unnecessary NULL deference check
has been added to the -mm tree. Its filename is
backlight-ams369fg06-remove-unnecessary-null-deference-check.patch
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------------------------------------------------------
From: Jingoo Han <jg1.han@xxxxxxxxxxx>
Subject: 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@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/backlight/ams369fg06.c | 32 ++++++-------------------
1 file changed, 8 insertions(+), 24 deletions(-)
diff -puN drivers/video/backlight/ams369fg06.c~backlight-ams369fg06-remove-unnecessary-null-deference-check drivers/video/backlight/ams369fg06.c
--- a/drivers/video/backlight/ams369fg06.c~backlight-ams369fg06-remove-unnecessary-null-deference-check
+++ a/drivers/video/backlight/ams369fg06.c
@@ -314,26 +314,17 @@ static int ams369fg06_ldi_disable(struct
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 am
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 a
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_d
lcd->power = FB_BLANK_POWERDOWN;
ams369fg06_power(lcd, FB_BLANK_UNBLANK);
- } else
+ } else {
lcd->power = FB_BLANK_UNBLANK;
+ }
dev_set_drvdata(&spi->dev, lcd);
_
Patches currently in -mm which might be from jg1.han@xxxxxxxxxxx are
origin.patch
backlight-add-lms501kf03-lcd-driver.patch
backlight-add-lms501kf03-lcd-driver-fix.patch
backlight-ld9040-use-sleep-instead-of-delay.patch
backlight-ld9040-remove-unnecessary-null-deference-check.patch
backlight-ld9040-replace-efault-with-einval.patch
backlight-ld9040-remove-redundant-return-variables.patch
backlight-ld9040-reorder-inclusions-of-linux-xxxh.patch
backlight-s6e63m0-use-lowercase-names-of-structs.patch
backlight-s6e63m0-use-sleep-instead-of-delay.patch
backlight-s6e63m0-remove-unnecessary-null-deference-check.patch
backlight-s6e63m0-replace-efault-with-einval.patch
backlight-s6e63m0-remove-redundant-variable-before_power.patch
backlight-s6e63m0-reorder-inclusions-of-linux-xxxh.patch
backlight-ams369fg06-use-sleep-instead-of-delay.patch
backlight-ams369fg06-remove-unnecessary-null-deference-check.patch
backlight-ams369fg06-replace-efault-with-einval.patch
backlight-ams369fg06-remove-redundant-variable-before_power.patch
backlight-ams369fg06-reorder-inclusions-of-linux-xxxh.patch
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