[PATCH] kernel/groups: groups_search can be boolean

[tangzhongrui]

This patch makes groups_search return bool due to this
particular function only using either one or zero as its return
value.

No functional change.

Signed-off-by: tangzhongrui <tangzhong...@cmss.chinamobile.com>
---
 include/linux/cred.h | 2 +-
 kernel/groups.c      | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/linux/cred.h b/include/linux/cred.h
index 099058e..c3eb950 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -81,7 +81,7 @@ static inline int in_egroup_p(kgid_t grp)
 #endif
 extern int set_current_groups(struct group_info *);
 extern void set_groups(struct cred *, struct group_info *);
-extern int groups_search(const struct group_info *, kgid_t);
+extern bool groups_search(const struct group_info *, kgid_t);
 extern bool may_setgroups(void);
 
 /*
diff --git a/kernel/groups.c b/kernel/groups.c
index e357bc8..c1b5d86 100644
--- a/kernel/groups.c
+++ b/kernel/groups.c
@@ -93,12 +93,12 @@ static void groups_sort(struct group_info *group_info)
 }
 
 /* a simple bsearch */
-int groups_search(const struct group_info *group_info, kgid_t grp)
+bool groups_search(const struct group_info *group_info, kgid_t grp)
 {
        unsigned int left, right;
 
        if (!group_info)
-               return 0;
+               return false;
 
        left = 0;
        right = group_info->ngroups;
@@ -109,9 +109,9 @@ int groups_search(const struct group_info *group_info, 
kgid_t grp)
                else if (gid_lt(grp, group_info->gid[mid]))
                        right = mid;
                else
-                       return 1;
+                       return true;
        }
-       return 0;
+       return false;
 }
 
 /**
-- 
1.8.3.1