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lightnvm: pblk: fix memory leak on error path 

When write recovery fails, Free memory for the recovery structure.

Fixes: a4bd217b43 "lightnvm: physical block device (pblk) target"

Signed-off-by: Javier González <javier@cnexlabs.com>
Reviewed-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
hifive-unleashed-5.1
Javier González 2017-04-22 01:32:47 +02:00 committed by Jens Axboe
parent f3236cef5a
commit 33db9fd46e
1 changed files with 3 additions and 0 deletions
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3
drivers/lightnvm/pblk-write.c
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@ -142,6 +142,7 @@ static void pblk_end_w_fail(struct pblk *pblk, struct nvm_rq *rqd)
/* Logic error */
if (bit > c_ctx->nr_valid) {
WARN_ONCE(1, "pblk: corrupted write request\n");
mempool_free(recovery, pblk->rec_pool);
goto out;
}
@ -149,6 +150,7 @@ static void pblk_end_w_fail(struct pblk *pblk, struct nvm_rq *rqd)
entry = pblk_rb_sync_scan_entry(&pblk->rwb, &ppa);
if (!entry) {
pr_err("pblk: could not scan entry on write failure\n");
mempool_free(recovery, pblk->rec_pool);
goto out;
}
@ -162,6 +164,7 @@ static void pblk_end_w_fail(struct pblk *pblk, struct nvm_rq *rqd)
ret = pblk_recov_setup_rq(pblk, c_ctx, recovery, comp_bits, c_entries);
if (ret) {
pr_err("pblk: could not recover from write failure\n");
mempool_free(recovery, pblk->rec_pool);
goto out;
}