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hugetlb: fix an error code in hugetlb_reserve_pages()

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[ Upstream commit 7fc2513aa2 ]

Preserve the error code from region_add() instead of returning success.

Link: https://lkml.kernel.org/r/X9NGZWnZl5/Mt99R@mwanda
Fixes: 0db9d74ed8 ("hugetlb: disable region_add file_region coalescing")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Mina Almasry <almasrymina@google.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter
2020-12-14 19:12:11 -08:00
committed by Greg Kroah-Hartman
parent b7bf8ed8d1
commit 9b52a37fb3
1 changed files with 1 additions and 0 deletions
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mm/hugetlb.c
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@@ -5115,6 +5115,7 @@ int hugetlb_reserve_pages(struct inode *inode,
if (unlikely(add < 0)) {
hugetlb_acct_memory(h, -gbl_reserve);
ret = add;
goto out_put_pages;
} else if (unlikely(chg > add)) {
/*