[PATCH 4/4] hwmon-nct6775: Adjust seven checks for null pointers

From: SF Markus Elfring
Date: Thu Apr 27 2017 - 05:32:30 EST


From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 27 Apr 2017 10:55:24 +0200
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The script âcheckpatch.plâ pointed information out like the following.

Comparison to NULL could be written â

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/hwmon/nct6775.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index d552ab7901a7..fe8713fb548c 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -1070,16 +1070,16 @@ nct6775_create_attr_group(struct device *dev,
return ERR_PTR(-EINVAL);

group = devm_kzalloc(dev, sizeof(*group), GFP_KERNEL);
- if (group == NULL)
+ if (!group)
return ERR_PTR(-ENOMEM);

attrs = devm_kcalloc(dev, repeat * count + 1, sizeof(*attrs),
GFP_KERNEL);
- if (attrs == NULL)
+ if (!attrs)
return ERR_PTR(-ENOMEM);

su = devm_kcalloc(dev, repeat * count, sizeof(*su), GFP_KERNEL);
- if (su == NULL)
+ if (!su)
return ERR_PTR(-ENOMEM);

group->attrs = attrs;
@@ -1087,7 +1087,7 @@ nct6775_create_attr_group(struct device *dev,

for (i = 0; i < repeat; i++) {
t = tg->templates;
- while (*t != NULL) {
+ while (*t) {
snprintf(su->name, sizeof(su->name),
(*t)->dev_attr.attr.name, tg->base + i);
if ((*t)->s2) {
@@ -3000,11 +3000,11 @@ static umode_t nct6775_pwm_is_visible(struct kobject *kobj,
if ((nr >= 14 && nr <= 18) || nr == 21) /* weight */
if (!data->REG_WEIGHT_TEMP_SEL[pwm])
return 0;
- if (nr == 19 && data->REG_PWM[3] == NULL) /* pwm_max */
+ if (nr == 19 && !data->REG_PWM[3]) /* pwm_max */
return 0;
- if (nr == 20 && data->REG_PWM[4] == NULL) /* pwm_step */
+ if (nr == 20 && !data->REG_PWM[4]) /* pwm_step */
return 0;
- if (nr == 21 && data->REG_PWM[6] == NULL) /* weight_duty_base */
+ if (nr == 21 && !data->REG_PWM[6]) /* weight_duty_base */
return 0;

if (nr >= 22 && nr <= 35) { /* auto point */
--
2.12.2