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Subject[PATCH 3.16 149/366] hypfs_kill_super(): deal with failed allocations
3.16.60-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Al Viro <viro@zeniv.linux.org.uk>

commit a24cd490739586a7d2da3549a1844e1d7c4f4fc4 upstream.

hypfs_fill_super() might fail to allocate sbi; hypfs_kill_super()
should not oops on that.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/s390/hypfs/inode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -326,7 +326,7 @@ static void hypfs_kill_super(struct supe

if (sb->s_root)
hypfs_delete_tree(sb->s_root);
- if (sb_info->update_file)
+ if (sb_info && sb_info->update_file)
hypfs_remove(sb_info->update_file);
kfree(sb->s_fs_info);
sb->s_fs_info = NULL;
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