UBIFS: fix free log space calculation

Hu (hujianyang <[email protected]>) discovered an issue in the
'empty_log_bytes()' function, which calculates how many bytes are left in the
log:

"
If 'c->lhead_lnum + 1 == c->ltail_lnum' and 'c->lhead_offs == c->leb_size', 'h'
would equalent to 't' and 'empty_log_bytes()' would return 'c->log_bytes'
instead of 0.
"

At this point it is not clear what would be the consequences of this, and
whether this may lead to any problems, but this patch addresses the issue just
in case.

Cc: [email protected]
Tested-by: hujianyang <[email protected]>
Reported-by: hujianyang <[email protected]>
Signed-off-by: Artem Bityutskiy <[email protected]>

0 files changed, 0 insertions, 0 deletions