ioctl try fix

module/zfs/zfs_ioctl.c

@@ -2453,15 +2453,17 @@ zfs_prop_set_special(const char *dsname, zprop_source_t source,
 	case ZFS_PROP_COMPRESSION:
 		if (intval == ZIO_COMPRESS_ADAPTIVE) {
 			err = dsl_dataset_activate_compress_adaptive(dsname);
-
-			if (err == 0)
-				err = -1;
-
 		}
+		err = dsl_dataset_set_compression(dsname, source, intval);
+		/*
+		 * Set err to -1 to force the zfs_set_prop_nvlist code down the
+		 * default path to set the value in the nvlist.
+		 */
+		if (err == 0)
+			err = -1;
 		break;
 	case ZFS_PROP_KEYLOCATION:
 		err = dsl_crypto_can_set_keylocation(dsname, strval);
-
 		/*
 		 * Set err to -1 to force the zfs_set_prop_nvlist code down the
 		 * default path to set the value in the nvlist.
@@ -2475,15 +2477,6 @@ zfs_prop_set_special(const char *dsname, zprop_source_t source,
 	case ZFS_PROP_REFRESERVATION:
 		err = dsl_dataset_set_refreservation(dsname, source, intval);
 		break;
-	case ZFS_PROP_COMPRESSION:
-		err = dsl_dataset_set_compression(dsname, source, intval);
-		/*
-		 * Set err to -1 to force the zfs_set_prop_nvlist code down the
-		 * default path to set the value in the nvlist.
-		 */
-		if (err == 0)
-			err = -1;
-		break;
 	case ZFS_PROP_VOLSIZE:
 		err = zvol_set_volsize(dsname, intval);
 		break;