Fixed more alert found by PVS-Studio

2 files changed, 3 insertions, 4 deletions

diff --git a/hw/bsp/board.c b/hw/bsp/board.c
index 476ec6733..483d9dc28 100644
--- a/hw/bsp/board.c
+++ b/hw/bsp/board.c
@@ -51,8 +51,7 @@ int sys_read(int fhdl, char *buf, size_t count) TU_ATTR_USED;
 
 int sys_write(int fhdl, const char *buf, size_t count) {
   (void) fhdl;
-  SEGGER_RTT_Write(0, buf, (int) count);
-  return (int) count;
+  return (int) SEGGER_RTT_Write(0, buf, (int) count);
 }
 
 int sys_read(int fhdl, char *buf, size_t count) {
@@ -159,7 +158,7 @@ int board_getchar(void) {
 }
 
 void board_putchar(int c) {
-  sys_write(0, (const char*)&c, 1);
+  (void) sys_write(0, (const char*)&c, 1);
 }
 
 uint32_t tusb_time_millis_api(void) {
diff --git a/hw/bsp/board_api.h b/hw/bsp/board_api.h
index 088c5fec4..606ac484f 100644
--- a/hw/bsp/board_api.h
+++ b/hw/bsp/board_api.h
@@ -165,7 +165,7 @@ static inline size_t board_usb_get_serial(uint16_t desc_str1[], size_t max_chars
           '0', '1', '2', '3', '4', '5', '6', '7',
           '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
       };
-      const uint8_t nibble = (uint8_t) ((uid[i] >> (j * 4)) & 0xf);
+      const uint8_t nibble = (uint8_t) ((uid[i] >> (j * 4u)) & 0xfu);
       desc_str1[i * 2 + (1 - j)] = nibble_to_hex[nibble]; // UTF-16-LE
     }
   }