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workqueue: Use IS_ERR and PTR_ERR instead of PTR_ERR_OR_ZERO.

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Replace inline function PTR_ERR_OR_ZERO with IS_ERR and PTR_ERR to
remove redundant parameter definitions and checks.
Reduce code size.
Before:
   text	   data	    bss	    dec	    hex	filename
  47510	   5979	    840	  54329	   d439	kernel/workqueue.o
After:
   text	   data	    bss	    dec	    hex	filename
  47474	   5979	    840	  54293	   d415	kernel/workqueue.o

Signed-off-by: Sean Fu <fxinrong@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Sean Fu 2020-04-29 12:04:13 +08:00 committed by Tejun Heo
parent 47cf1b422e
commit f187b6974f
1 changed files with 2 additions and 4 deletions
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6
kernel/workqueue.c
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@ -4197,7 +4197,6 @@ static int wq_clamp_max_active(int max_active, unsigned int flags,
static int init_rescuer(struct workqueue_struct *wq) static int init_rescuer(struct workqueue_struct *wq)
{ {
struct worker *rescuer; struct worker *rescuer;
int ret;
if (!(wq->flags & WQ_MEM_RECLAIM)) if (!(wq->flags & WQ_MEM_RECLAIM))
return 0; return 0;
@ -4208,10 +4207,9 @@ static int init_rescuer(struct workqueue_struct *wq)
rescuer->rescue_wq = wq; rescuer->rescue_wq = wq;
rescuer->task = kthread_create(rescuer_thread, rescuer, "%s", wq->name); rescuer->task = kthread_create(rescuer_thread, rescuer, "%s", wq->name);
ret = PTR_ERR_OR_ZERO(rescuer->task); if (IS_ERR(rescuer->task)) {
if (ret) {
kfree(rescuer); kfree(rescuer);
return ret; return PTR_ERR(rescuer->task);
} }
wq->rescuer = rescuer; wq->rescuer = rescuer;