diff --git a/android/android-tester.c b/android/android-tester.c
index e4f95ce..ba9137a 100644
--- a/android/android-tester.c
+++ b/android/android-tester.c
@@ -518,7 +518,7 @@ static void emulator(int pipe, int hci_index)
 	memset(buf, 0, sizeof(buf));
 
 	len = read(fd, buf, sizeof(buf));
-	if (len <= 0 || (strcmp(buf, "bluetooth.start=daemon")))
+	if (len <= 0 || strcmp(buf, "bluetooth.start=daemon"))
 		goto failed;
 
 	close(pipe);
@@ -1985,7 +1985,7 @@ static bool setup(struct test_data *data)
 	data->bluetoothd_pid = pid;
 
 	len = read(signal_fd[0], buf, sizeof(buf));
-	if (len <= 0 || (strcmp(buf, EMULATOR_SIGNAL))) {
+	if (len <= 0 || strcmp(buf, EMULATOR_SIGNAL)) {
 		close(signal_fd[0]);
 		return false;
 	}
diff --git a/android/bluetooth.c b/android/bluetooth.c
index 21b3a83..b105ac8 100644
--- a/android/bluetooth.c
+++ b/android/bluetooth.c
@@ -74,7 +74,7 @@
 #define DEVICES_CACHE_MAX 300
 
 #define BASELEN_PROP_CHANGED (sizeof(struct hal_ev_adapter_props_changed) \
-					+ (sizeof(struct hal_property)))
+					+ sizeof(struct hal_property))
 
 #define BASELEN_REMOTE_DEV_PROP (sizeof(struct hal_ev_remote_device_props) \
 					+ sizeof(struct hal_property))
diff --git a/android/ipc-tester.c b/android/ipc-tester.c
index e1aeb2e..ec8d3ff 100644
--- a/android/ipc-tester.c
+++ b/android/ipc-tester.c
@@ -264,7 +264,7 @@ static void emulator(int pipe, int hci_index)
 	memset(buf, 0, sizeof(buf));
 
 	len = read(fd, buf, sizeof(buf));
-	if (len <= 0 || (strcmp(buf, "ctl.start=bluetoothd")))
+	if (len <= 0 || strcmp(buf, "ctl.start=bluetoothd"))
 		goto failed;
 
 	close(pipe);