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| author | Adrian Huang <ahuang12@lenovo.com> | 2021-02-24 12:04:29 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-24 13:38:30 -0800 |
| commit | b7204006c8602f43793ee1b285e963084bdb1a26 (patch) | |
| tree | e9856e9080381a75dccd59039d40689fd775bbd7 /mm/mmap.c | |
| parent | 96403bfe50c344b587ea53894954a9d152af1c9d (diff) | |
| download | linux-stable-b7204006c8602f43793ee1b285e963084bdb1a26.tar.gz linux-stable-b7204006c8602f43793ee1b285e963084bdb1a26.tar.bz2 linux-stable-b7204006c8602f43793ee1b285e963084bdb1a26.zip | |
mm/mmap.c: remove unnecessary local variable
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.
Link: https://lkml.kernel.org/r/20201222103249.30683-1-adrianhuang0701@gmail.com
Signed-off-by: Adrian Huang <ahuang12@lenovo.com>
Acked-by: Souptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index 90673febce6a..3f287599a7a3 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 @@ success: 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) |