unit: Do not compare expression against NULL

This patch generate via coccinelle with:

@ disable is_null,isnt_null1 @
expression E;
@@

(
- E == NULL
+ !E
|
- E != NULL
+ E
)

2 files changed, 4 insertions, 4 deletions

diff --git a/unit/test-ippool.c b/unit/test-ippool.c
index e5c08ca7..a11220d1 100644
--- a/unit/test-ippool.c
+++ b/unit/test-ippool.c
@@ -47,7 +47,7 @@ static void test_case_1(void)
 	__connman_ippool_init();
 
 	pool = __connman_ippool_create(23, 1, 500, NULL, NULL);
-	g_assert(pool == NULL);
+	g_assert(!pool);
 
 	for (i = 0; i < 100000; i++) {
 		pool = __connman_ippool_create(23, 1, 20, NULL, NULL);
@@ -131,7 +131,7 @@ static void test_case_3(void)
 
 	while (TRUE) {
 		pool = __connman_ippool_create(23, 1, 100, NULL, NULL);
-		if (pool == NULL)
+		if (!pool)
 			break;
 		i += 1;
 
@@ -154,7 +154,7 @@ static void test_case_3(void)
 
 	LOG("Number of blocks %d", i);
 
-	for (it = list; it != NULL; it = it->next) {
+	for (it = list; it; it = it->next) {
 		pool = it->data;
 
 		__connman_ippool_unref(pool);
diff --git a/unit/test-pbkdf2-sha1.c b/unit/test-pbkdf2-sha1.c
index 5c8e7f40..71e1d4e2 100644
--- a/unit/test-pbkdf2-sha1.c
+++ b/unit/test-pbkdf2-sha1.c
@@ -199,7 +199,7 @@ static void psk_test(gconstpointer data)
 	unsigned int i;
 	int result;
 
-	if (test->network == NULL) {
+	if (!test->network) {
 		memcpy(ssid, test->ssid, test->ssid_len);
 		ssid_len = test->ssid_len;
 	} else {