diff options
Diffstat (limited to 'drivers/target/target_core_configfs.c')
| -rw-r--r-- | drivers/target/target_core_configfs.c | 49 |
1 files changed, 36 insertions, 13 deletions
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 0b0de3647478..860e84046177 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -457,8 +457,15 @@ void target_unregister_template(const struct target_core_fabric_ops *fo) if (!strcmp(t->tf_ops->name, fo->name)) { BUG_ON(atomic_read(&t->tf_access_cnt)); list_del(&t->tf_list); + mutex_unlock(&g_tf_lock); + /* + * Wait for any outstanding fabric se_deve_entry->rcu_head + * callbacks to complete post kfree_rcu(), before allowing + * fabric driver unload of TFO->module to proceed. + */ + rcu_barrier(); kfree(t); - break; + return; } } mutex_unlock(&g_tf_lock); @@ -747,7 +754,7 @@ static ssize_t store_pi_prot_type(struct se_dev_attrib *da, if (!dev->transport->init_prot || !dev->transport->free_prot) { /* 0 is only allowed value for non-supporting backends */ if (flag == 0) - return 0; + return count; pr_err("DIF protection not supported by backend: %s\n", dev->transport->name); @@ -1590,9 +1597,9 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( u8 type = 0; if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) - return 0; + return count; if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) - return 0; + return count; if (dev->export_count) { pr_debug("Unable to process APTPL metadata while" @@ -1658,22 +1665,32 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( * PR APTPL Metadata for Reservation */ case Opt_res_holder: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; res_holder = arg; break; case Opt_res_type: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; type = (u8)arg; break; case Opt_res_scope: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; break; case Opt_res_all_tg_pt: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; all_tg_pt = (int)arg; break; case Opt_mapped_lun: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; mapped_lun = (u64)arg; break; /* @@ -1701,14 +1718,20 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( } break; case Opt_tpgt: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; tpgt = (u16)arg; break; case Opt_port_rtpi: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; break; case Opt_target_lun: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; target_lun = (u64)arg; break; default: @@ -1985,7 +2008,7 @@ static ssize_t target_core_store_alua_lu_gp( lu_gp_mem = dev->dev_alua_lu_gp_mem; if (!lu_gp_mem) - return 0; + return count; if (count > LU_GROUP_NAME_BUF) { pr_err("ALUA LU Group Alias too large!\n"); |