target/configfs: handle match_int() errors

As a follow up to ce31c1b0dc4038a1dec64585d892adb73d9c45f4 - there are
still a few LIO match_int() calls that don't check the return value.
Propagate errors rather than using the potentially uninitialised result.

Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 7f3cb3a2b783aac179a25b95a8d530135ec30f68..c2e9fea90b4a4bc16a0384d79fa9684c9f4176e0 100644 (file)
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -1658,22 +1658,32 @@ 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 +1711,20 @@ 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: