reiserfs: use designated initializers

Prepare to mark sensitive kernel structures for randomization by making
sure they're using designated initializers.  These were identified
during allyesconfig builds of x86, arm, and arm64, with most initializer
fixes extracted from grsecurity.

Link: http://lkml.kernel.org/r/20170329210419.GA40066@beast
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/reiserfs/item_ops.c b/fs/reiserfs/item_ops.c
index aca73dd..e3c558d 100644
--- a/fs/reiserfs/item_ops.c
+++ b/fs/reiserfs/item_ops.c
@@ -724,18 +724,18 @@
 }
 
 static struct item_operations errcatch_ops = {
-	errcatch_bytes_number,
-	errcatch_decrement_key,
-	errcatch_is_left_mergeable,
-	errcatch_print_item,
-	errcatch_check_item,
+	.bytes_number = errcatch_bytes_number,
+	.decrement_key = errcatch_decrement_key,
+	.is_left_mergeable = errcatch_is_left_mergeable,
+	.print_item = errcatch_print_item,
+	.check_item = errcatch_check_item,
 
-	errcatch_create_vi,
-	errcatch_check_left,
-	errcatch_check_right,
-	errcatch_part_size,
-	errcatch_unit_num,
-	errcatch_print_vi
+	.create_vi = errcatch_create_vi,
+	.check_left = errcatch_check_left,
+	.check_right = errcatch_check_right,
+	.part_size = errcatch_part_size,
+	.unit_num = errcatch_unit_num,
+	.print_vi = errcatch_print_vi
 };
 
 #if ! (TYPE_STAT_DATA == 0 && TYPE_INDIRECT == 1 && TYPE_DIRECT == 2 && TYPE_DIRENTRY == 3)