linux-kernel - [PATCH] kprobes: Remove unnecessary initial values of variables

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Message-Id: <20230919012823.7815-1-zeming@nfschina.com>
Date:   Tue, 19 Sep 2023 09:28:23 +0800
From:   Li zeming <zeming@...china.com>
To:     naveen.n.rao@...ux.ibm.com, anil.s.keshavamurthy@...el.com,
        davem@...emloft.net, mhiramat@...nel.org
Cc:     linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
        Li zeming <zeming@...china.com>
Subject: [PATCH] kprobes: Remove unnecessary initial values of variables

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

Signed-off-by: Li zeming <zeming@...china.com>
---
 kernel/kprobes.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index ca385b61d546..82b2a366d496 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1990,7 +1990,7 @@ 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))
@@ -2817,7 +2817,7 @@ 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];
-- 
2.18.2