From: Adrian Huang <ahuang12@xxxxxxxxxx>
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 <ahuang12@xxxxxxxxxx>
---
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
