fixing alert by scanning tool

1 files changed, 1 insertions, 1 deletions

diff --git a/examples/device/cdc_msc/src/main.c b/examples/device/cdc_msc/src/main.c
index c4606528a..5d70903bc 100644
--- a/examples/device/cdc_msc/src/main.c
+++ b/examples/device/cdc_msc/src/main.c
@@ -123,7 +123,7 @@ void cdc_task(void) {
     static uint32_t btn_prev = 0;
     static cdc_notify_uart_state_t uart_state = { .value = 0 };
     const uint32_t btn = board_button_read();
-    if (!btn_prev && btn) {
+    if ((btn_prev == 0) && btn) {
       uart_state.dsr ^= 1;
       tud_cdc_notify_uart_state(&uart_state);
     }