vblank: return TDM_ERROR_TIMEOUT when timeout occurs

[platform/core/uifw/libtdm.git] / include / tdm_list.h

diff --git a/include/tdm_list.h b/include/tdm_list.h
index 6255cd0..7475894 100644 (file)
--- a/include/tdm_list.h
+++ b/include/tdm_list.h
@@ -126,6 +126,11 @@ static inline int list_length(struct list_head *item)
        &pos->member != (head);                                         \
        pos = container_of(pos->member.next, pos, member))
 
+#define LIST_FOR_EACH_ENTRY_REV(pos, head, member)                             \
+       for (pos = container_of((head)->prev, pos, member);                     \
+       &pos->member != (head);                                         \
+       pos = container_of(pos->member.prev, pos, member))
+
 #define LIST_FOR_EACH_ENTRY_SAFE(pos, storage, head, member)   \
        for (pos = container_of((head)->next, pos, member),                     \
        storage = container_of(pos->member.next, pos, member);  \
@@ -150,7 +155,7 @@ static inline int list_length(struct list_head *item)
 
 #define LIST_FIND_ITEM(item, head, type, member, found) \
        do {    \
-               type *pos;      \
+               type *pos = NULL;       \
                found = NULL;   \
                LIST_FOR_EACH_ENTRY(pos, head, member)  \
                        if (pos == item) { found = item; break; }       \