flash_stm32f4: bits were badly unset in erase and write functions

A typo was present ion the erase and write function were bit were uncorrectly unset but all other bit except the mask were unset. The code still worked because the two typos fixed themselves. Signed-off-by: Neil Armstrong <[email protected]>
zephyrproject-rtos · May 19, 2017 · ad9cca0 · ad9cca0
1 parent 375c362
commit ad9cca0
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/drivers/flash/flash_stm32f4x.c b/drivers/flash/flash_stm32f4x.c
@@ -79,7 +79,7 @@ static int write_byte(off_t offset, u8_t val, struct stm32f4x_flash *regs)
  return rc;
  }
 
- regs->ctrl &= CR_PSIZE_MASK;
+ regs->ctrl &= ~CR_PSIZE_MASK;
  regs->ctrl |= FLASH_PSIZE_BYTE;
  regs->ctrl |= FLASH_CR_PG;
 
@@ -117,7 +117,7 @@ static int erase_sector(u16_t sector, struct stm32f4x_flash *regs)
  tmp = regs->ctrl;
 
  rc = wait_flash_idle(regs);
- regs->ctrl &= (FLASH_CR_SER | FLASH_CR_SNB);
+ regs->ctrl &= ~(FLASH_CR_SER | FLASH_CR_SNB);
 
  return rc;
 }