fs/bio: bio_alloc_bioset: pass right object ptr to mempool_free

When freeing from bio pool use right ptr to account for bs->front_pad,
instead of bio ptr,

Signed-off-by: Subhash Peddamallu <subhash.peddamallu@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/bio.c b/fs/bio.c
index 062299acbccd..72ab251cdb9c 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -302,9 +302,10 @@ void bio_init(struct bio *bio)
 struct bio *bio_alloc_bioset(gfp_t gfp_mask, int nr_iovecs, struct bio_set *bs)
 {
         struct bio *bio = NULL;
+        void *p;
 
         if (bs) {
-                void *p = mempool_alloc(bs->bio_pool, gfp_mask);
+                p = mempool_alloc(bs->bio_pool, gfp_mask);
 
                 if (p)
                         bio = p + bs->front_pad;
@@ -329,7 +330,7 @@ struct bio *bio_alloc_bioset(gfp_t gfp_mask, int nr_iovecs, struct bio_set *bs)
                         }
                         if (unlikely(!bvl)) {
                                 if (bs)
-                                        mempool_free(bio, bs->bio_pool);
+                                        mempool_free(p, bs->bio_pool);
                                 else
                                         kfree(bio);
                                 bio = NULL;