ipv4: coding style: comparison for equality with NULL
The ipv4 code uses a mixture of coding styles. In some instances check
for NULL pointer is done as x == NULL and sometimes as !x. !x is
preferred according to checkpatch and this patch makes the code
consistent by adopting the latter form.
No changes detected by objdiff.
Signed-off-by: Ian Morris <ipm@chirality.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 2c7c299..9e4a3e3 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -391,9 +391,9 @@
BUG_ON(i >= child_length(tn));
/* update emptyChildren, overflow into fullChildren */
- if (n == NULL && chi != NULL)
+ if (!n && chi != NULL)
empty_child_inc(tn);
- if (n != NULL && chi == NULL)
+ if (n != NULL && !chi)
empty_child_dec(tn);
/* update fullChildren */
@@ -528,7 +528,7 @@
unsigned long j, k;
/* An empty child */
- if (inode == NULL)
+ if (!inode)
continue;
/* A leaf or an internal node with skipped bits */
@@ -1154,7 +1154,7 @@
}
err = -ENOBUFS;
new_fa = kmem_cache_alloc(fn_alias_kmem, GFP_KERNEL);
- if (new_fa == NULL)
+ if (!new_fa)
goto out;
fi_drop = fa->fa_info;
@@ -1204,7 +1204,7 @@
err = -ENOBUFS;
new_fa = kmem_cache_alloc(fn_alias_kmem, GFP_KERNEL);
- if (new_fa == NULL)
+ if (!new_fa)
goto out;
new_fa->fa_info = fi;
@@ -1975,7 +1975,7 @@
sz += sizeof(struct trie);
tb = kzalloc(sz, GFP_KERNEL);
- if (tb == NULL)
+ if (!tb)
return NULL;
tb->tb_id = id;