Commit 388c571c authored Sep 20, 2006 by Michael Holzheu Committed by Martin Schwidefsky Sep 20, 2006

[S390] hypfs crashes with invalid mount option.



When an invalid mount option is specified, no root inode is created
for hypfs, hypfs_fill_super() returns with -EINVAL and then
hypfs_kill_super() is called. hypfs_kill_super() does not check if
the root inode has been initialized. This patch adds this check.

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent 564337f3

arch/s390/hypfs/inode.c

+6 −4

Original line number	Diff line number	Diff line
		@@ -312,10 +312,12 @@ static void hypfs_kill_super(struct super_block *sb)
		{
		struct hypfs_sb_info *sb_info = sb->s_fs_info;

		if (sb->s_root) {
		hypfs_delete_tree(sb->s_root);
		hypfs_remove(sb_info->update_file);
		kfree(sb->s_fs_info);
		sb->s_fs_info = NULL;
		}
		kill_litter_super(sb);
		}