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lightnvm: unlock rq and free ppa_list on submission fail 

When rrpc_write_ppalist_rq and rrpc_read_ppalist_rq succeed, we setup
rq correctly, but nvm_submit_io may afterward fail since it cannot
allocate request or nvme_nvm_command, we return error but forget to
cleanup the previous work.

Signed-off-by: Wenwei Tao <ww.tao0320@gmail.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Wenwei Tao 2016-01-12 07:49:18 +01:00 committed by Jens Axboe
parent 3bfbc6adbc
commit c27278bddd
1 changed files with 6 additions and 0 deletions
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6
drivers/lightnvm/rrpc.c
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@ -845,6 +845,12 @@ static int rrpc_submit_io(struct rrpc *rrpc, struct bio *bio,
if (err) {
pr_err("rrpc: I/O submission failed: %d\n", err);
bio_put(bio);
if (!(flags & NVM_IOTYPE_GC)) {
rrpc_unlock_rq(rrpc, rqd);
if (rqd->nr_pages > 1)
nvm_dev_dma_free(rrpc->dev,
rqd->ppa_list, rqd->dma_ppa_list);
}
return NVM_IO_ERR;
}