From: Kautuk Consul <consul.kautuk@gmail.com>
Date: Tue, 1 Nov 2011 00:08:59 +0000 (-0700)
Subject: mm/mmap.c: eliminate the ret variable from mm_take_all_locks()
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=584cff54e1ff8f59d5109dc8093efedff8bcc375;p=openwrt%2Fstaging%2Fblogic.git

mm/mmap.c: eliminate the ret variable from mm_take_all_locks()

The ret variable is really not needed in mm_take_all_locks().

Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/mmap.c b/mm/mmap.c
index a65efd4db3e1..3c0061f744f5 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2558,7 +2558,6 @@ int mm_take_all_locks(struct mm_struct *mm)
 {
 	struct vm_area_struct *vma;
 	struct anon_vma_chain *avc;
-	int ret = -EINTR;
 
 	BUG_ON(down_read_trylock(&mm->mmap_sem));
 
@@ -2579,13 +2578,11 @@ int mm_take_all_locks(struct mm_struct *mm)
 				vm_lock_anon_vma(mm, avc->anon_vma);
 	}
 
-	ret = 0;
+	return 0;
 
 out_unlock:
-	if (ret)
-		mm_drop_all_locks(mm);
-
-	return ret;
+	mm_drop_all_locks(mm);
+	return -EINTR;
 }
 
 static void vm_unlock_anon_vma(struct anon_vma *anon_vma)