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-rw-r--r--drivers/xen/events.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 4f0f22b020ea..76e5b7386af9 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -529,7 +529,7 @@ void xen_evtchn_do_upcall(struct pt_regs *regs)
529 529
530#ifndef CONFIG_X86 /* No need for a barrier -- XCHG is a barrier on x86. */ 530#ifndef CONFIG_X86 /* No need for a barrier -- XCHG is a barrier on x86. */
531 /* Clear master flag /before/ clearing selector flag. */ 531 /* Clear master flag /before/ clearing selector flag. */
532 rmb(); 532 wmb();
533#endif 533#endif
534 pending_words = xchg(&vcpu_info->evtchn_pending_sel, 0); 534 pending_words = xchg(&vcpu_info->evtchn_pending_sel, 0);
535 while (pending_words != 0) { 535 while (pending_words != 0) {