Messages in this thread Patch in this message | | | From | Yafang Shao <> | Subject | [PATCH] arch/x86/kernel/process.c: avoid unnecessary NULL check in get_wchan | Date | Wed, 21 Nov 2018 19:12:14 +0800 |
| |
Because the task p is always guaranteed to be non-NULL.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com> --- arch/x86/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index c93fcfd..3c3ee89 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -730,7 +730,7 @@ unsigned long get_wchan(struct task_struct *p) unsigned long start, bottom, top, sp, fp, ip, ret = 0; int count = 0; - if (!p || p == current || p->state == TASK_RUNNING) + if (p == current || p->state == TASK_RUNNING) return 0; if (!try_get_task_stack(p)) -- 1.8.3.1
| |