[PATCH 7/7] xen/device_tree: Fix MISRA C 2012 Rule 20.7 violations

[Xenia Ragiadakou <burzalodowa@xxxxxxxxx>]

In macros dt_for_each_property_node(), dt_for_each_device_node() and
dt_for_each_child_node(), add parentheses around the macro parameters that
have the arrow operator applied, to prevent against unintended expansions.

Signed-off-by: Xenia Ragiadakou <burzalodowa@xxxxxxxxx>
---
 xen/include/xen/device_tree.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/xen/include/xen/device_tree.h b/xen/include/xen/device_tree.h
index 430a1ef445..6e4391c126 100644
--- a/xen/include/xen/device_tree.h
+++ b/xen/include/xen/device_tree.h
@@ -222,13 +222,13 @@ dt_find_interrupt_controller(const struct dt_device_match 
*matches);
 #define DT_ROOT_NODE_SIZE_CELLS_DEFAULT 1
 
 #define dt_for_each_property_node(dn, pp)                   \
-    for ( pp = dn->properties; pp != NULL; pp = pp->next )
+    for ( pp = (dn)->properties; pp != NULL; pp = (pp)->next )
 
 #define dt_for_each_device_node(dt, dn)                     \
-    for ( dn = dt; dn != NULL; dn = dn->allnext )
+    for ( dn = dt; dn != NULL; dn = (dn)->allnext )
 
 #define dt_for_each_child_node(dt, dn)                      \
-    for ( dn = dt->child; dn != NULL; dn = dn->sibling )
+    for ( dn = (dt)->child; dn != NULL; dn = (dn)->sibling )
 
 /* Helper to read a big number; size is in cells (not bytes) */
 static inline u64 dt_read_number(const __be32 *cell, int size)
-- 
2.34.1