fw_env: allocate buffer of proper size in flash_write_buf()

When dealing with env data not aligned to flash blocks flash_write_buf()
has to use an extra buffer. It reads existing flash content to it,
modifies required part and writes it back.

While reading and writing a size stored in "write_total" is used. It's
what should be used when allocating the buffer too.

In some cases allocating memory of "erase_len" size could result in
allocating too big buffer. That wouldn't break anything but it was
making code less intuitive.

Signed-off-by: Rafał Miłecki <[email protected]>

0 files changed, 0 insertions, 0 deletions