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authorIgor Konopko <igor.j.konopko@intel.com>2018-06-01 17:41:09 +0300
committerJens Axboe <axboe@kernel.dk>2018-06-01 18:02:53 +0300
commitfbadca7396b97d95e2390c97506358f4f9dce7c7 (patch)
tree9e84e0b90a50b2e2e357c2fbf1fd6dfebc727b99
parentf142ac0b5d18547a9614a697f86820ee35fd7bf0 (diff)
downloadlinux-fbadca7396b97d95e2390c97506358f4f9dce7c7.tar.xz
lightnvm: fix partial read error path
When error occurs during bio_add_page on partial read path, pblk tries to free pages twice. Signed-off-by: Igor Konopko <igor.j.konopko@intel.com> Signed-off-by: Marcin Dziegielewski <marcin.dziegielewski@intel.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--drivers/lightnvm/pblk-read.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/lightnvm/pblk-read.c b/drivers/lightnvm/pblk-read.c
index 38f89a84ce5e..f770fd113ffe 100644
--- a/drivers/lightnvm/pblk-read.c
+++ b/drivers/lightnvm/pblk-read.c
@@ -256,7 +256,7 @@ static int pblk_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd,
new_bio = bio_alloc(GFP_KERNEL, nr_holes);
if (pblk_bio_add_pages(pblk, new_bio, GFP_KERNEL, nr_holes))
- goto err;
+ goto err_add_pages;
if (nr_holes != new_bio->bi_vcnt) {
pr_err("pblk: malformed bio\n");
@@ -347,10 +347,10 @@ static int pblk_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd,
return NVM_IO_OK;
err:
- pr_err("pblk: failed to perform partial read\n");
-
/* Free allocated pages in new bio */
- pblk_bio_free_pages(pblk, bio, 0, new_bio->bi_vcnt);
+ pblk_bio_free_pages(pblk, new_bio, 0, new_bio->bi_vcnt);
+err_add_pages:
+ pr_err("pblk: failed to perform partial read\n");
__pblk_end_io_read(pblk, rqd, false);
return NVM_IO_ERR;
}