diff options
| -rw-r--r-- | arch/s390/kernel/process.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 9f2727bf3cbe..b0afec673f77 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -196,12 +196,12 @@ unsigned long get_wchan(struct task_struct *p) goto out; } for (count = 0; count < 16; count++) { - sf = (struct stack_frame *) sf->back_chain; + sf = (struct stack_frame *)READ_ONCE_NOCHECK(sf->back_chain); if (sf <= low || sf > high) { return_address = 0; goto out; } - return_address = sf->gprs[8]; + return_address = READ_ONCE_NOCHECK(sf->gprs[8]); if (!in_sched_functions(return_address)) goto out; } |