[PATCH] xfs: xfs_rmap_item: Add ASSERT after calling kmem_zalloc

[Jiasheng Jiang]

As the potential failure of the kmem_zalloc() without __GFP_NOFAIL,
it should be better to check it in order to avoid the dereference
of NULL pointer.

Fixes: 5880f2d78ff1 ("xfs: create rmap update intent log items")
Signed-off-by: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
---
 fs/xfs/xfs_rmap_item.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c
index c3966b4c58ef..66395faeeb87 100644
--- a/fs/xfs/xfs_rmap_item.c
+++ b/fs/xfs/xfs_rmap_item.c
@@ -143,6 +143,7 @@ xfs_rui_init(
 	else
 		ruip = kmem_cache_zalloc(xfs_rui_cache,
 					 GFP_KERNEL | __GFP_NOFAIL);
+	ASSERT(ruip);
 
 	xfs_log_item_init(mp, &ruip->rui_item, XFS_LI_RUI, &xfs_rui_item_ops);
 	ruip->rui_format.rui_nextents = nextents;
-- 
2.25.1