From d44291735c573c645d2fba54a8eb80916e2f2c0e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 2 Apr 2018 23:50:31 -0400 Subject: [PATCH] hypfs_kill_super(): deal with failed allocations commit a24cd490739586a7d2da3549a1844e1d7c4f4fc4 upstream. hypfs_fill_super() might fail to allocate sbi; hypfs_kill_super() should not oops on that. Cc: stable@vger.kernel.org Signed-off-by: Al Viro Signed-off-by: Greg Kroah-Hartman --- arch/s390/hypfs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c index c952b981e4f28..f7ace92bb1f6d 100644 --- a/arch/s390/hypfs/inode.c +++ b/arch/s390/hypfs/inode.c @@ -326,7 +326,7 @@ static void hypfs_kill_super(struct super_block *sb) 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; -- 2.47.3