ubi: Fix return value overwrite issue in try_write_vid_and_data()

The commit 2d78aee426d8 ("UBI: simplify LEB write and atomic LEB change code")
adds helper function, try_write_vid_and_data(), to simplify the code, but this
helper function has bug, it will return 0 (success) when ubi_io_write_vid_hdr()
or the ubi_io_write_data() return error number (-EIO, etc), because the return
value of ubi_wl_put_peb() will overwrite the original return value.

This issue will cause unexpected data loss issue, because the caller of this
function and UBIFS willn't know the data is lost.

Fixes: 2d78aee426d8 ("UBI: simplify LEB write and atomic LEB change code")
Cc: [email protected]
Signed-off-by: Wang YanQing <[email protected]>
Reviewed-by: Zhihao Cheng <[email protected]>
Signed-off-by: Richard Weinberger <[email protected]>

0 files changed, 0 insertions, 0 deletions