Commit 3259914f authored by XU pengfei's avatar XU pengfei Committed by Andrew Morton
Browse files

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: default avatarXU pengfei <xupengfei@nfschina.com>
Reviewed-by: default avatarMuchun Song <songmuchun@bytedance.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent c195c321

mm/hugetlb.c

+2 −2
Original line number Diff line number Diff line
@@ -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 &&