We need to preserve error code before freeing "rescuer".
Fixes: f187b6974f6df ("workqueue: Use IS_ERR and PTR_ERR instead of PTR_ERR_OR_ZERO.")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
Another option would be to just revert the original commit.
kernel/workqueue.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index ddf0537dce140..10ed8d761e0b7 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -4197,6 +4197,7 @@ static int wq_clamp_max_active(int max_active, unsigned int flags,
static int init_rescuer(struct workqueue_struct *wq)
{
struct worker *rescuer;
+ int ret;
if (!(wq->flags & WQ_MEM_RECLAIM))
return 0;
@@ -4208,8 +4209,9 @@ static int init_rescuer(struct workqueue_struct *wq)
rescuer->rescue_wq = wq;
rescuer->task = kthread_create(rescuer_thread, rescuer, "%s", wq->name);
if (IS_ERR(rescuer->task)) {
+ ret = PTR_ERR(rescuer->task);
kfree(rescuer);
- return PTR_ERR(rescuer->task);
+ return ret;
}
wq->rescuer = rescuer;
--
2.26.2
