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hugetlbfs: add NULL check in hugetlb_zero_setup()
[powerpc.git]
/
fs
/
hugetlbfs
/
inode.c
diff --git
a/fs/hugetlbfs/inode.c
b/fs/hugetlbfs/inode.c
index
842a4ed
..
98959b8
100644
(file)
--- a/
fs/hugetlbfs/inode.c
+++ b/
fs/hugetlbfs/inode.c
@@
-747,6
+747,9
@@
struct file *hugetlb_zero_setup(size_t size)
char buf[16];
static atomic_t counter;
+ if (!hugetlbfs_vfsmount)
+ return ERR_PTR(-ENOENT);
+
if (!can_do_hugetlb_shm())
return ERR_PTR(-EPERM);