[PATCH 1/1] mm: mmap: Remove unnecessary local variable

[Adrian Huang]

From: Adrian Huang <ahuan...@lenovo.com>

The local variable 'retval' is assigned just for once in __do_sys_brk(),
and the function returns the value of the local variable right after
the assignment. Remove unnecessary assignment and local variable
declaration.

Signed-off-by: Adrian Huang <ahuan...@lenovo.com>
---
 mm/mmap.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index dc7206032387..482c0c0bbe06 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -189,7 +189,6 @@ static int do_brk_flags(unsigned long addr, unsigned long 
request, unsigned long
                struct list_head *uf);
 SYSCALL_DEFINE1(brk, unsigned long, brk)
 {
-       unsigned long retval;
        unsigned long newbrk, oldbrk, origbrk;
        struct mm_struct *mm = current->mm;
        struct vm_area_struct *next;
@@ -281,9 +280,8 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
        return brk;
 
 out:
-       retval = origbrk;
        mmap_write_unlock(mm);
-       return retval;
+       return origbrk;
 }
 
 static inline unsigned long vma_compute_gap(struct vm_area_struct *vma)
-- 
2.17.1