scsi: target: spc: Fix loop traversal in spc_rsoc_get_descr()

Stop traversing after finding the appropriate descriptor.

Signed-off-by: Chaohai Chen <wdhh66@163.com>
Link: https://lore.kernel.org/r/20250124085542.109088-1-wdhh66@163.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Author: Chaohai Chen

drivers/target/target_core_spc.c

@@ -2151,8 +2151,10 @@ spc_rsoc_get_descr(struct se_cmd *cmd, struct target_opcode_descriptor **opcode)
 			if (descr->serv_action_valid)
 				return TCM_INVALID_CDB_FIELD;
 
-			if (!descr->enabled || descr->enabled(descr, cmd))
+			if (!descr->enabled || descr->enabled(descr, cmd)) {
 				*opcode = descr;
+				return TCM_NO_SENSE;
+			}
 			break;
 		case 0x2:
 			/*
@@ -2166,8 +2168,10 @@ spc_rsoc_get_descr(struct se_cmd *cmd, struct target_opcode_descriptor **opcode)
 			if (descr->serv_action_valid &&
 			    descr->service_action == requested_sa) {
 				if (!descr->enabled || descr->enabled(descr,
-								      cmd))
+								      cmd)) {
 					*opcode = descr;
+					return TCM_NO_SENSE;
+				}
 			} else if (!descr->serv_action_valid)
 				return TCM_INVALID_CDB_FIELD;
 			break;
@@ -2180,13 +2184,15 @@ spc_rsoc_get_descr(struct se_cmd *cmd, struct target_opcode_descriptor **opcode)
 			 */
 			if (descr->service_action == requested_sa)
 				if (!descr->enabled || descr->enabled(descr,
-								      cmd))
+								      cmd)) {
 					*opcode = descr;
+					return TCM_NO_SENSE;
+				}
 			break;
 		}
 	}
 
-	return 0;
+	return TCM_NO_SENSE;
 }
 
 static sense_reason_t