[PATCH -next] nvmet: fix error return code in nvmet_file_ns_enable()

[Wei Yongjun]

Fix to return error code -ENOMEM from the memory alloc fail error
handling case instead of 0, as done elsewhere in this function.

Fixes: d5eff33ee6f8 ("nvmet: add simple file backed ns support")
Signed-off-by: Wei Yongjun <weiyongj...@huawei.com>
---
 drivers/nvme/target/io-cmd-file.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/nvme/target/io-cmd-file.c 
b/drivers/nvme/target/io-cmd-file.c
index ca1ccf8..e9d6ce4 100644
--- a/drivers/nvme/target/io-cmd-file.c
+++ b/drivers/nvme/target/io-cmd-file.c
@@ -49,14 +49,18 @@ int nvmet_file_ns_enable(struct nvmet_ns *ns)
        ns->bvec_cache = kmem_cache_create("nvmet-bvec",
                        NVMET_MAX_MPOOL_BVEC * sizeof(struct bio_vec),
                        0, SLAB_HWCACHE_ALIGN, NULL);
-       if (!ns->bvec_cache)
+       if (!ns->bvec_cache) {
+               ret = -ENOMEM;
                goto err;
+       }
 
        ns->bvec_pool = mempool_create(NVMET_MIN_MPOOL_OBJ, mempool_alloc_slab,
                        mempool_free_slab, ns->bvec_cache);
 
-       if (!ns->bvec_pool)
+       if (!ns->bvec_pool) {
+               ret = -ENOMEM;
                goto err;
+       }
 
        return ret;
 err: