kernel: kprobes: Remove unnecessary ‘0’ values

Li zeming · mhiramat · commit ed9492dfef87 · 2023-07-11T00:50:51.000+09:00
it is assigned first, so it does not need to initialize the assignment. Link: https://lore.kernel.org/all/20230711185353.3218-1-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
@@ -1072,7 +1072,7 @@ static int kprobe_ftrace_enabled;
 static int __arm_kprobe_ftrace(struct kprobe *p, struct ftrace_ops *ops,
 			       int *cnt)
 {
-	int ret = 0;
+	int ret;
 
 	lockdep_assert_held(&kprobe_mutex);
 
@@ -1110,7 +1110,7 @@ static int arm_kprobe_ftrace(struct kprobe *p)
 static int __disarm_kprobe_ftrace(struct kprobe *p, struct ftrace_ops *ops,
 				  int *cnt)
 {
-	int ret = 0;
+	int ret;
 
 	lockdep_assert_held(&kprobe_mutex);
 
@@ -2692,7 +2692,7 @@ void kprobe_free_init_mem(void)
 
 static int __init init_kprobes(void)
 {
-	int i, err = 0;
+	int i, err;
 
 	/* FIXME allocate the probe table, currently defined statically */
 	/* initialize all list heads */

Original file line number	Diff line number	Diff line change
`@@ -1072,7 +1072,7 @@ static int kprobe_ftrace_enabled;`
`1072`	`1072`	`static int __arm_kprobe_ftrace(struct kprobe p, struct ftrace_ops ops,`
`1073`	`1073`	`int *cnt)`
`1074`	`1074`	`{`
`1075`		`- int ret = 0;`
	`1075`	`+ int ret;`
`1076`	`1076`
`1077`	`1077`	`lockdep_assert_held(&kprobe_mutex);`
`1078`	`1078`
`@@ -1110,7 +1110,7 @@ static int arm_kprobe_ftrace(struct kprobe *p)`
`1110`	`1110`	`static int __disarm_kprobe_ftrace(struct kprobe p, struct ftrace_ops ops,`
`1111`	`1111`	`int *cnt)`
`1112`	`1112`	`{`
`1113`		`- int ret = 0;`
	`1113`	`+ int ret;`
`1114`	`1114`
`1115`	`1115`	`lockdep_assert_held(&kprobe_mutex);`
`1116`	`1116`
`@@ -2692,7 +2692,7 @@ void kprobe_free_init_mem(void)`
`2692`	`2692`
`2693`	`2693`	`static int __init init_kprobes(void)`
`2694`	`2694`	`{`
`2695`		`- int i, err = 0;`
	`2695`	`+ int i, err;`
`2696`	`2696`
`2697`	`2697`	`/* FIXME allocate the probe table, currently defined statically */`
`2698`	`2698`	`/* initialize all list heads */`