From: Mike Kravetz Date: Fri, 16 Dec 2022 22:45:07 +0000 (-0800) Subject: hugetlb: initialize variable to avoid compiler warning X-Git-Tag: v6.3-rc1~113^2~472 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=c5094ec79cbe487983e3a96548a7eb1c1c82c727;p=linux-2.6-block.git hugetlb: initialize variable to avoid compiler warning With the gcc 'maybe-uninitialized' warning enabled, gcc will produce: mm/hugetlb.c:6896:20: warning: `chg' may be used uninitialized This is a false positive, but may be difficult for the compiler to determine. maybe-uninitialized is disabled by default, but this gets flagged as a 0-DAY build regression. Initialize the variable to silence the warning. Link: https://lkml.kernel.org/r/20221216224507.106789-1-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz Signed-off-by: Andrew Morton --- diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 0e5441d6890a..a82f41024167 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -6760,7 +6760,7 @@ bool hugetlb_reserve_pages(struct inode *inode, struct vm_area_struct *vma, vm_flags_t vm_flags) { - long chg, add = -1; + long chg = -1, add = -1; struct hstate *h = hstate_inode(inode); struct hugepage_subpool *spool = subpool_inode(inode); struct resv_map *resv_map;