提交 94414ca0 编写于 作者: J Julia Lawall 提交者: Martin Schwidefsky

s390/oprofile: make return of 0 explicit

Delete unnecessary local variable whose value is always 0 and that hides
the fact that the result is always 0.

A simplified version of the semantic patch that fixes this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
local idexpression ret;
expression e;
position p;
@@

-ret = 0;
... when != ret = e
return
- ret
+ 0
  ;
// </smpl>

[heiko.carstens: turn prepare_cpu_buffers into a void returning function]
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
上级 470ada6b
......@@ -209,13 +209,11 @@ static void init_all_cpu_buffers(void)
}
}
static int prepare_cpu_buffers(void)
static void prepare_cpu_buffers(void)
{
int cpu;
int rc;
struct hws_cpu_buffer *cb;
int cpu;
rc = 0;
for_each_online_cpu(cpu) {
cb = &per_cpu(sampler_cpu_buffer, cpu);
atomic_set(&cb->ext_params, 0);
......@@ -230,8 +228,6 @@ static int prepare_cpu_buffers(void)
cb->oom = 0;
cb->stop_mode = 0;
}
return rc;
}
/*
......@@ -1107,9 +1103,7 @@ int hwsampler_start_all(unsigned long rate)
if (rc)
goto start_all_exit;
rc = prepare_cpu_buffers();
if (rc)
goto start_all_exit;
prepare_cpu_buffers();
for_each_online_cpu(cpu) {
rc = start_sampling(cpu);
......@@ -1156,7 +1150,7 @@ int hwsampler_stop_all(void)
rc = 0;
if (hws_state == HWS_INIT) {
mutex_unlock(&hws_sem);
return rc;
return 0;
}
hws_state = HWS_STOPPING;
mutex_unlock(&hws_sem);
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册