ftrace: Remove unused varible 'ret'

'ret' in 2 functions are not used. and one of them is a void function.
So remove them to avoid gcc warning:
kernel/trace/ftrace.c:4166:6: warning: variable ‘ret’ set but not used
[-Wunused-but-set-variable]
kernel/trace/ftrace.c:5571:6: warning: variable ‘ret’ set but not used
[-Wunused-but-set-variable]

Link: https://lkml.kernel.org/r/1604674486-52350-1-git-send-email-alex.shi@linux.alibaba.com
Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 03aad2b..3db64fb 100644 (file)
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -4162,7 +4162,6 @@ static void process_mod_list(struct list_head *head, struct ftrace_ops *ops,
        struct ftrace_hash **orig_hash, *new_hash;
        LIST_HEAD(process_mods);
        char *func;
-       int ret;
 
        mutex_lock(&ops->func_hash->regex_lock);
 
@@ -4215,7 +4214,7 @@ static void process_mod_list(struct list_head *head, struct ftrace_ops *ops,
 
        mutex_lock(&ftrace_lock);
 
-       ret = ftrace_hash_move_and_update_ops(ops, orig_hash,
+       ftrace_hash_move_and_update_ops(ops, orig_hash,
                                              new_hash, enable);
        mutex_unlock(&ftrace_lock);
 
@@ -5567,7 +5566,6 @@ int ftrace_regex_release(struct inode *inode, struct file *file)
        struct ftrace_hash **orig_hash;
        struct trace_parser *parser;
        int filter_hash;
-       int ret;
 
        if (file->f_mode & FMODE_READ) {
                iter = m->private;
@@ -5595,7 +5593,7 @@ int ftrace_regex_release(struct inode *inode, struct file *file)
                        orig_hash = &iter->ops->func_hash->notrace_hash;
 
                mutex_lock(&ftrace_lock);
-               ret = ftrace_hash_move_and_update_ops(iter->ops, orig_hash,
+               ftrace_hash_move_and_update_ops(iter->ops, orig_hash,
                                                      iter->hash, filter_hash);
                mutex_unlock(&ftrace_lock);
        } else {