[PATCH 2/3] kernel-sched: Adjust four checks for null pointers

[SF Markus Elfring]

From: Markus Elfring <elfr...@users.sourceforge.net>
Date: Sat, 6 May 2017 21:17:36 +0200
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The script “checkpatch.pl” pointed information out like the following.

Comparison to NULL could be written !…

Thus fix the affected source code place.

Signed-off-by: Markus Elfring <elfr...@users.sourceforge.net>
---
 kernel/sched/debug.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index ff599b7f10b6..4a1abb61d1f7 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -231,7 +231,7 @@ static void sd_free_ctl_entry(struct ctl_table **tablep)
        for (entry = *tablep; entry->mode; entry++) {
                if (entry->child)
                        sd_free_ctl_entry(&entry->child);
-               if (entry->proc_handler == NULL)
+               if (!entry->proc_handler)
                        kfree(entry->procname);
        }
 
@@ -265,7 +265,7 @@ sd_alloc_ctl_domain_table(struct sched_domain *sd)
 {
        struct ctl_table *table = sd_alloc_ctl_entry(14);
 
-       if (table == NULL)
+       if (!table)
                return NULL;
 
        set_table_entry(&table[0], "min_interval", &sd->min_interval,
@@ -311,7 +311,7 @@ static struct ctl_table *sd_alloc_ctl_cpu_table(int cpu)
        for_each_domain(cpu, sd)
                domain_num++;
        entry = table = sd_alloc_ctl_entry(domain_num + 1);
-       if (table == NULL)
+       if (!table)
                return NULL;
 
        i = 0;
@@ -336,7 +336,7 @@ void register_sched_domain_sysctl(void)
        WARN_ON(sd_ctl_dir[0].child);
        sd_ctl_dir[0].child = entry;
 
-       if (entry == NULL)
+       if (!entry)
                return;
 
        for_each_possible_cpu(i) {
-- 
2.12.2