mm/hugetlb.c: clean code by removing unnecessary initialization

Previously variable 'check_addr' was initialized, but was not read later
before reassigning.  So the initialization can be removed.

Signed-off-by: Mateusz Nosek <mateusznosek0@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Link: http://lkml.kernel.org/r/20200303212354.25226-1-mateusznosek0@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 3fd9f24..4b84640 100644 (file)
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -5156,7 +5156,7 @@ static bool vma_shareable(struct vm_area_struct *vma, unsigned long addr)
 void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma,
                                unsigned long *start, unsigned long *end)
 {
-       unsigned long check_addr = *start;
+       unsigned long check_addr;
 
        if (!(vma->vm_flags & VM_MAYSHARE))
                return;