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ftrace: Unlock hash mutex on failed allocation in process_mod_list()
If the new_hash fails to allocate, then unlock the hash mutex on error. Reported-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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@ -3997,7 +3997,7 @@ static void process_mod_list(struct list_head *head, struct ftrace_ops *ops,
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new_hash = alloc_and_copy_ftrace_hash(FTRACE_HASH_DEFAULT_BITS,
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*orig_hash);
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if (!new_hash)
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return; /* Warn? */
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goto out; /* warn? */
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mutex_lock(&ftrace_lock);
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@ -4042,6 +4042,7 @@ static void process_mod_list(struct list_head *head, struct ftrace_ops *ops,
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new_hash, enable);
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mutex_unlock(&ftrace_lock);
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out:
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mutex_unlock(&ops->func_hash->regex_lock);
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free_ftrace_hash(new_hash);
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