diff options
| author | Hua Su <suhua.tanke@gmail.com> | 2018-12-11 20:16:18 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-12 19:47:08 +0100 |
| commit | ccb7b328361ae6d1cf4e907429381ae37c81520d (patch) | |
| tree | 9582dd42caf2fed46b82bfb97c880c979f76b381 /drivers/lightnvm/pblk-core.c | |
| parent | 10014ff04a4e0a498af966351ecfee7b84fad8db (diff) | |
lightnvm: pblk: add lock protection to list operations
[ Upstream commit fde201a466c6ad5efd72cb54fdf2cefa8b6c6ad7 ]
Protect the list_add on the pblk_line_init_bb() error
path in case this code is used for some other purpose
in the future.
Signed-off-by: Hua Su <suhua.tanke@gmail.com>
Reviewed-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/lightnvm/pblk-core.c')
| -rw-r--r-- | drivers/lightnvm/pblk-core.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c index 2940cdc87af1..95be6e36c7dd 100644 --- a/drivers/lightnvm/pblk-core.c +++ b/drivers/lightnvm/pblk-core.c @@ -1252,15 +1252,22 @@ int pblk_line_recov_alloc(struct pblk *pblk, struct pblk_line *line) ret = pblk_line_alloc_bitmaps(pblk, line); if (ret) - return ret; + goto fail; if (!pblk_line_init_bb(pblk, line, 0)) { - list_add(&line->list, &l_mg->free_list); - return -EINTR; + ret = -EINTR; + goto fail; } pblk_rl_free_lines_dec(&pblk->rl, line, true); return 0; + +fail: + spin_lock(&l_mg->free_lock); + list_add(&line->list, &l_mg->free_list); + spin_unlock(&l_mg->free_lock); + + return ret; } void pblk_line_recov_close(struct pblk *pblk, struct pblk_line *line) |