diff --git a/[refs] b/[refs]
index df6b8f439deb..97c6f10894f7 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1ffe627dcfce820b316ee520c58fca54550a18ee
+refs/heads/master: 8828880d09e4466ad6b357a31fdd242594c7b111
diff --git a/trunk/arch/arm/mach-omap2/mailbox.c b/trunk/arch/arm/mach-omap2/mailbox.c
index 5bf9a2fdb682..f3fefca58494 100644
--- a/trunk/arch/arm/mach-omap2/mailbox.c
+++ b/trunk/arch/arm/mach-omap2/mailbox.c
@@ -176,6 +176,9 @@ static void omap2_mbox_ack_irq(struct omap_mbox *mbox,
 	u32 bit = (irq == IRQ_TX) ? p->notfull_bit : p->newmsg_bit;
 
 	mbox_write_reg(bit, p->irqstatus);
+
+	/* Flush posted write for irq status to avoid spurious interrupts */
+	mbox_read_reg(p->irqstatus);
 }
 
 static int omap2_mbox_is_irq(struct omap_mbox *mbox,