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authorTony Lindgren <tony@atomide.com>2017-11-28 07:06:34 -0800
committerTony Lindgren <tony@atomide.com>2017-11-28 07:06:34 -0800
commit2db57789e6612ce0cf2fcbb577a1c8307b708566 (patch)
treedd9f9e3dffabbf5cb932fcf5055ab329ca940fa0 /kernel/task_work.c
parentARM: OMAP2+: Fix smatch found issue for omap_device (diff)
parentARM: OMAP2+: Missing error code in omap_device_build() (diff)
Merge branch 'soc-fixes' into omap-for-v4.15/fixes
Diffstat (limited to 'kernel/task_work.c')
-rw-r--r--kernel/task_work.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/task_work.c b/kernel/task_work.c
index 836a72a66fba..0fef395662a6 100644
--- a/kernel/task_work.c
+++ b/kernel/task_work.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/spinlock.h>
#include <linux/task_work.h>
#include <linux/tracehook.h>
@@ -67,7 +68,7 @@ task_work_cancel(struct task_struct *task, task_work_func_t func)
* we raced with task_work_run(), *pprev == NULL/exited.
*/
raw_spin_lock_irqsave(&task->pi_lock, flags);
- while ((work = lockless_dereference(*pprev))) {
+ while ((work = READ_ONCE(*pprev))) {
if (work->func != func)
pprev = &work->next;
else if (cmpxchg(pprev, work, work->next) == work)