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mm/hugetlb: remove unnecessary 'NULL' values from pointer 

Pointer variables allocate memory first, and then judge.  There is no need
to initialize the assignment.

Link: https://lkml.kernel.org/r/20220914012113.6271-1-xupengfei@nfschina.com
Signed-off-by: XU pengfei <xupengfei@nfschina.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
XU pengfei 2022-09-14 09:21:14 +08:00 committed by Andrew Morton
parent c195c32157
commit 3259914f8c
1 changed files with 2 additions and 2 deletions
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4
mm/hugetlb.c
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@ -258,7 +258,7 @@ static inline struct hugepage_subpool *subpool_vma(struct vm_area_struct *vma)
static struct file_region *
get_file_region_entry_from_cache(struct resv_map *resv, long from, long to)
{
struct file_region *nrg = NULL;
struct file_region *nrg;
VM_BUG_ON(resv->region_cache_count <= 0);
@ -340,7 +340,7 @@ static bool has_same_uncharge_info(struct file_region *rg,
static void coalesce_file_region(struct resv_map *resv, struct file_region *rg)
{
struct file_region *nrg = NULL, *prg = NULL;
struct file_region *nrg, *prg;
prg = list_prev_entry(rg, link);
if (&prg->link != &resv->regions && prg->to == rg->from &&