mm/hugeltb: remove redundant VM_BUG_ON() in region_add()

Patch series "Cleanup and fixup for hugetlb", v2.

This series contains cleanups to remove redundant VM_BUG_ON() and simplify
the return code.  Also this handles the error case in
hugetlb_fix_reserve_counts() correctly.  More details can be found in the
respective changelogs.

This patch (of 5):

The same VM_BUG_ON() check is already done in the callee.  Remove this
extra one to simplify the code slightly.

Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Miaohe Lin <[email protected]>
Reviewed-by: Mike Kravetz <[email protected]>
Cc: Feilong Lin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

1 files changed, 0 insertions, 1 deletions

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index c8f0a38588ba..ce9e18d45f52 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -553,7 +553,6 @@ retry:
 	resv->adds_in_progress -= in_regions_needed;
 
 	spin_unlock(&resv->lock);
-	VM_BUG_ON(add < 0);
 	return add;
 }