linux-kernel - [PATCH] kprobes: Remove unnecessary ‘NULL’ values from correct_ret

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230704194359.3124-1-zeming@nfschina.com>
Date:   Wed,  5 Jul 2023 03:43:59 +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 ‘NULL’ values from correct_ret_addr

The 'correct_ret_addr' pointer is always set in the later code, no need
to initialize it at definition time.

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

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index db8a3aa53cf6..ec50f9f380c1 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -2007,9 +2007,9 @@ void __weak arch_kretprobe_fixup_return(struct pt_regs *regs,
 unsigned long __kretprobe_trampoline_handler(struct pt_regs *regs,
 					     void *frame_pointer)
 {
-	kprobe_opcode_t *correct_ret_addr = NULL;
 	struct kretprobe_instance *ri = NULL;
 	struct llist_node *first, *node = NULL;
+	kprobe_opcode_t *correct_ret_addr;
 	struct kretprobe *rp;
 
 	/* Find correct address and all nodes for this frame. */
-- 
2.18.2