| From a24cd490739586a7d2da3549a1844e1d7c4f4fc4 Mon Sep 17 00:00:00 2001 |
| From: Al Viro <viro@zeniv.linux.org.uk> |
| Date: Mon, 2 Apr 2018 23:50:31 -0400 |
| Subject: hypfs_kill_super(): deal with failed allocations |
| |
| 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. |
| |
| Cc: stable@vger.kernel.org |
| Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| 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; |
