5 files changed, 25 insertions, 12 deletions

diff --git a/drivers/nvme/target/auth.c b/drivers/nvme/target/auth.c
index 3ddbc3880c..fb518b00f7 100644
--- a/drivers/nvme/target/auth.c
+++ b/drivers/nvme/target/auth.c
@@ -285,9 +285,9 @@ int nvmet_auth_host_hash(struct nvmet_req *req, u8 *response,
 	}
 
 	if (shash_len != crypto_shash_digestsize(shash_tfm)) {
-		pr_debug("%s: hash len mismatch (len %d digest %d)\n",
-			 __func__, shash_len,
-			 crypto_shash_digestsize(shash_tfm));
+		pr_err("%s: hash len mismatch (len %d digest %d)\n",
+			__func__, shash_len,
+			crypto_shash_digestsize(shash_tfm));
 		ret = -EINVAL;
 		goto out_free_tfm;
 	}
@@ -370,7 +370,7 @@ out_free_response:
 	nvme_auth_free_key(transformed_key);
 out_free_tfm:
 	crypto_free_shash(shash_tfm);
-	return 0;
+	return ret;
 }
 
 int nvmet_auth_ctrl_hash(struct nvmet_req *req, u8 *response,
diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c
index 2482a0db25..3ef6bc6556 100644
--- a/drivers/nvme/target/configfs.c
+++ b/drivers/nvme/target/configfs.c
@@ -728,6 +728,18 @@ static struct configfs_attribute *nvmet_ns_attrs[] = {
 	NULL,
 };
 
+bool nvmet_subsys_nsid_exists(struct nvmet_subsys *subsys, u32 nsid)
+{
+	struct config_item *ns_item;
+	char name[12];
+
+	snprintf(name, sizeof(name), "%u", nsid);
+	mutex_lock(&subsys->namespaces_group.cg_subsys->su_mutex);
+	ns_item = config_group_find_item(&subsys->namespaces_group, name);
+	mutex_unlock(&subsys->namespaces_group.cg_subsys->su_mutex);
+	return ns_item != NULL;
+}
+
 static void nvmet_ns_release(struct config_item *item)
 {
 	struct nvmet_ns *ns = to_nvmet_ns(item);
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index 8658e9c085..7a6b3d37cc 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -425,10 +425,13 @@ void nvmet_stop_keep_alive_timer(struct nvmet_ctrl *ctrl)
 u16 nvmet_req_find_ns(struct nvmet_req *req)
 {
 	u32 nsid = le32_to_cpu(req->cmd->common.nsid);
+	struct nvmet_subsys *subsys = nvmet_req_subsys(req);
 
-	req->ns = xa_load(&nvmet_req_subsys(req)->namespaces, nsid);
+	req->ns = xa_load(&subsys->namespaces, nsid);
 	if (unlikely(!req->ns)) {
 		req->error_loc = offsetof(struct nvme_common_command, nsid);
+		if (nvmet_subsys_nsid_exists(subsys, nsid))
+			return NVME_SC_INTERNAL_PATH_ERROR;
 		return NVME_SC_INVALID_NS | NVME_SC_DNR;
 	}
 
diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h
index 6c8acebe1a..477416abf8 100644
--- a/drivers/nvme/target/nvmet.h
+++ b/drivers/nvme/target/nvmet.h
@@ -542,6 +542,7 @@ void nvmet_subsys_disc_changed(struct nvmet_subsys *subsys,
 		struct nvmet_host *host);
 void nvmet_add_async_event(struct nvmet_ctrl *ctrl, u8 event_type,
 		u8 event_info, u8 log_page);
+bool nvmet_subsys_nsid_exists(struct nvmet_subsys *subsys, u32 nsid);
 
 #define NVMET_QUEUE_SIZE	1024
 #define NVMET_NR_QUEUES		128
diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index c8655fc5aa..8d4531a160 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -348,6 +348,7 @@ static int nvmet_tcp_check_ddgst(struct nvmet_tcp_queue *queue, void *pdu)
 	return 0;
 }
 
+/* If cmd buffers are NULL, no operation is performed */
 static void nvmet_tcp_free_cmd_buffers(struct nvmet_tcp_cmd *cmd)
 {
 	kfree(cmd->iov);
@@ -1580,13 +1581,9 @@ static void nvmet_tcp_free_cmd_data_in_buffers(struct nvmet_tcp_queue *queue)
 	struct nvmet_tcp_cmd *cmd = queue->cmds;
 	int i;
 
-	for (i = 0; i < queue->nr_cmds; i++, cmd++) {
-		if (nvmet_tcp_need_data_in(cmd))
-			nvmet_tcp_free_cmd_buffers(cmd);
-	}
-
-	if (!queue->nr_cmds && nvmet_tcp_need_data_in(&queue->connect))
-		nvmet_tcp_free_cmd_buffers(&queue->connect);
+	for (i = 0; i < queue->nr_cmds; i++, cmd++)
+		nvmet_tcp_free_cmd_buffers(cmd);
+	nvmet_tcp_free_cmd_buffers(&queue->connect);
 }
 
 static void nvmet_tcp_release_queue_work(struct work_struct *w)