drivers: explicitly compare pointers to NULL

This patch was generated by the following semantic patch
(http://coccinelle.lip6.fr/)

// <smpl>
@fix disable is_null,isnt_null1@
expression *E;
@@

- !E
+ E == NULL
// </smpl>

3 files changed, 17 insertions, 16 deletions

diff --git a/drivers/stemodem/gprs-context.c b/drivers/stemodem/gprs-context.c
index 1675cd8d..faa31241 100644
--- a/drivers/stemodem/gprs-context.c
+++ b/drivers/stemodem/gprs-context.c
@@ -158,7 +158,7 @@ static struct conn_info *conn_info_create(unsigned int device,
 {
 	struct conn_info *connection = g_try_new0(struct conn_info, 1);
 
-	if (!connection)
+	if (connection == NULL)
 		return NULL;
 
 	connection->cid = 0;
@@ -206,7 +206,7 @@ static void ste_eppsd_down_cb(gboolean ok, GAtResult *result,
 				GUINT_TO_POINTER(gcd->active_context),
 				conn_compare_by_cid);
 
-	if (!l) {
+	if (l == NULL) {
 		DBG("Did not find data (used caif device) for"
 					"connection with cid; %d",
 					gcd->active_context);
@@ -247,7 +247,7 @@ static void ste_eppsd_up_cb(gboolean ok, GAtResult *result, gpointer user_data)
 				GUINT_TO_POINTER(gcd->active_context),
 				conn_compare_by_cid);
 
-	if (!l) {
+	if (l == NULL) {
 		DBG("Did not find data (device and channel id)"
 					"for connection with cid; %d",
 					gcd->active_context);
@@ -344,7 +344,7 @@ static void ste_cgdcont_cb(gboolean ok, GAtResult *result, gpointer user_data)
 	l = g_slist_find_custom(g_caif_devices, GUINT_TO_POINTER(0),
 				conn_compare_by_cid);
 
-	if (!l) {
+	if (l == NULL) {
 		DBG("at_cgdcont_cb, no more available devices");
 		goto error;
 	}
@@ -376,7 +376,7 @@ static void ste_gprs_activate_primary(struct ofono_gprs_context *gc,
 	char buf[AUTH_BUF_LENGTH];
 	int len;
 
-	if (!cbd)
+	if (cbd == NULL)
 		goto error;
 
 	gcd->active_context = ctx->cid;
@@ -421,7 +421,7 @@ static void ste_gprs_deactivate_primary(struct ofono_gprs_context *gc,
 	char buf[64];
 	GSList *l;
 
-	if (!cbd)
+	if (cbd == NULL)
 		goto error;
 
 	gcd->active_context = id;
@@ -430,7 +430,7 @@ static void ste_gprs_deactivate_primary(struct ofono_gprs_context *gc,
 	l = g_slist_find_custom(g_caif_devices, GUINT_TO_POINTER(id),
 				conn_compare_by_cid);
 
-	if (!l) {
+	if (l == NULL) {
 		DBG("at_gprs_deactivate_primary, did not find"
 			"data (channel id) for connection with cid; %d", id);
 		goto error;
diff --git a/drivers/stemodem/radio-settings.c b/drivers/stemodem/radio-settings.c
index 5b16ec0b..e65baf46 100644
--- a/drivers/stemodem/radio-settings.c
+++ b/drivers/stemodem/radio-settings.c
@@ -192,8 +192,9 @@ static int ste_radio_settings_probe(struct ofono_radio_settings *rs,
 {
 	GAtChat *chat = data;
 	struct radio_settings_data *rsd;
+
 	rsd = g_try_new0(struct radio_settings_data, 1);
-	if (!rsd)
+	if (rsd == NULL)
 		return -ENOMEM;
 
 	rsd->chat = chat;
diff --git a/drivers/stemodem/voicecall.c b/drivers/stemodem/voicecall.c
index b9d91d2e..bf68f52a 100644
--- a/drivers/stemodem/voicecall.c
+++ b/drivers/stemodem/voicecall.c
@@ -109,7 +109,7 @@ static struct ofono_call *create_call(struct ofono_voicecall *vc, int type,
 
 	/* Generate a call structure for the waiting call */
 	call = g_try_new0(struct ofono_call, 1);
-	if (!call)
+	if (call == NULL)
 		return NULL;
 
 	call->type = type;
@@ -187,7 +187,7 @@ static void ste_dial(struct ofono_voicecall *vc,
 	struct cb_data *cbd = cb_data_new(cb, data);
 	char buf[256];
 
-	if (!cbd)
+	if (cbd == NULL)
 		goto error;
 
 	cbd->user = vc;
@@ -235,7 +235,7 @@ static void ste_template(const char *cmd, struct ofono_voicecall *vc,
 	struct voicecall_data *vd = ofono_voicecall_get_data(vc);
 	struct change_state_req *req = g_try_new0(struct change_state_req, 1);
 
-	if (!req)
+	if (req == NULL)
 		goto error;
 
 	req->vc = vc;
@@ -299,7 +299,7 @@ static void ste_release_specific(struct ofono_voicecall *vc, int id,
 	struct release_id_req *req = g_try_new0(struct release_id_req, 1);
 	char buf[32];
 
-	if (!req)
+	if (req == NULL)
 		goto error;
 
 	req->vc = vc;
@@ -379,13 +379,13 @@ static void ste_send_dtmf(struct ofono_voicecall *vc, const char *dtmf,
 	int s;
 	char *buf;
 
-	if (!cbd)
+	if (cbd == NULL)
 		goto error;
 
 	/* strlen("AT+VTS=) = 7 */
 	buf = g_try_new(char, len + 7);
 
-	if (!buf)
+	if (buf == NULL)
 		goto error;
 
 	sprintf(buf, "AT+VTS=%s", dtmf);
@@ -506,7 +506,7 @@ static void ecav_notify(GAtResult *result, gpointer user_data)
 
 		new_call = create_call(vc, call_type, direction, status,
 					num, num_type, clip_validity);
-		if (!new_call) {
+		if (new_call == NULL) {
 			ofono_error("Unable to malloc. "
 					"Call management is fubar");
 			return;
@@ -546,7 +546,7 @@ static int ste_voicecall_probe(struct ofono_voicecall *vc, unsigned int vendor,
 	struct voicecall_data *vd;
 
 	vd = g_try_new0(struct voicecall_data, 1);
-	if (!vd)
+	if (vd == NULL)
 		return -ENOMEM;
 
 	vd->chat = g_at_chat_clone(chat);