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hypfs_kill_super(): deal with failed allocations

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commit a24cd49073 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>
This commit is contained in:
Al Viro
2018-04-02 23:50:31 -04:00
committed by Greg Kroah-Hartman
parent 02d20e670e
commit f3ba3eaaee
1 changed files with 1 additions and 1 deletions
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arch/s390/hypfs/inode.c
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@@ -318,7 +318,7 @@ 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;