kprobes: Remove unnecessary initial values of variables

ri and sym is assigned first, so it does not need to initialize the
assignment.

Link: https://lore.kernel.org/all/20230919012823.7815-1-zeming@nfschina.com/
Signed-off-by: Li zeming <zeming@nfschina.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index d5a0ee40bf66c5318df14c5a49294850434e13d3..9d9095e817928658d2c6d54d5da6f4826ff7c6be 100644 (file)
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1993,7 +1993,7 @@ NOKPROBE_SYMBOL(__kretprobe_find_ret_addr);
 unsigned long kretprobe_find_ret_addr(struct task_struct *tsk, void *fp,
                                      struct llist_node **cur)
 {
-       struct kretprobe_instance *ri = NULL;
+       struct kretprobe_instance *ri;
        kprobe_opcode_t *ret;
 
        if (WARN_ON_ONCE(!cur))
@@ -2802,7 +2802,7 @@ static int show_kprobe_addr(struct seq_file *pi, void *v)
 {
        struct hlist_head *head;
        struct kprobe *p, *kp;
-       const char *sym = NULL;
+       const char *sym;
        unsigned int i = *(loff_t *) v;
        unsigned long offset = 0;
        char *modname, namebuf[KSYM_NAME_LEN];