diff --git a/drivers/flash/CMakeLists.txt b/drivers/flash/CMakeLists.txt
index c5fbc8a0fb363..617f1422a90d3 100644
--- a/drivers/flash/CMakeLists.txt
+++ b/drivers/flash/CMakeLists.txt
@@ -97,7 +97,7 @@ if(CONFIG_SOC_FLASH_STM32)
     zephyr_library_sources_ifdef(CONFIG_DT_HAS_ST_STM32H7_FLASH_CONTROLLER_ENABLED flash_stm32h7x.c)
   elseif(CONFIG_SOC_SERIES_STM32WBAX)
     if(CONFIG_BT_STM32WBA)
-      # BLE is enabled. Use implementation over Flash Manager for coexistence wit RF activities
+      # BLE is enabled. Use implementation over Flash Manager for coexistence with RF activities
       zephyr_library_sources(flash_stm32wba_fm.c)
     else()
       zephyr_library_sources_ifdef(CONFIG_DT_HAS_ST_STM32_FLASH_CONTROLLER_ENABLED flash_stm32.c flash_stm32wbax.c)
diff --git a/drivers/flash/flash_stm32wba_fm.c b/drivers/flash/flash_stm32wba_fm.c
index 8bf3f5d186b93..08838a147aad3 100644
--- a/drivers/flash/flash_stm32wba_fm.c
+++ b/drivers/flash/flash_stm32wba_fm.c
@@ -66,17 +66,6 @@ bool flash_stm32_valid_range(const struct device *dev, off_t offset,
 	return flash_stm32_range_exists(dev, offset, len);
 }
 
-
-static inline void flash_stm32_sem_take(const struct device *dev)
-{
-	k_sem_take(&FLASH_STM32_PRIV(dev)->sem, K_FOREVER);
-}
-
-static inline void flash_stm32_sem_give(const struct device *dev)
-{
-	k_sem_give(&FLASH_STM32_PRIV(dev)->sem);
-}
-
 static int flash_stm32_read(const struct device *dev, off_t offset,
 			    void *data,
 			    size_t len)