Files
linux/drivers/mtd
Wang YanQing 884e961674 ubi: Fix return value overwrite issue in try_write_vid_and_data()
commit 31a149d5c1 upstream.

The commit 2d78aee426 ("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: 2d78aee426 ("UBI: simplify LEB write and atomic LEB change code")
Cc: stable@vger.kernel.org
Signed-off-by: Wang YanQing <udknight@gmail.com>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-11 23:03:05 +09:00
..
2022-06-28 06:33:15 -06:00
2022-09-21 10:38:11 +02:00
2022-09-20 10:40:30 +02:00
2022-09-19 18:14:53 +02:00