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hypfs_kill_super(): deal with failed allocations 

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>
hifive-unleashed-5.1
Al Viro 2018-04-02 23:50:31 -04:00
parent 60cc43fc88
commit a24cd49073
1 changed files with 1 additions and 1 deletions
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2
arch/s390/hypfs/inode.c
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@ -320,7 +320,7 @@ 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;