Since commit 
1c6c69525b40eb76de8adf039409722015927dc3 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.
So pass the IRQF_ONESHOT flag in this case.
The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
 
                if (irq_flags & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING))
                        ret = request_threaded_irq(i2c->irq, NULL,
-                                                  wm5100_edge_irq, irq_flags,
+                                                  wm5100_edge_irq,
+                                                  irq_flags | IRQF_ONESHOT,
                                                   "wm5100", wm5100);
                else
                        ret = request_threaded_irq(i2c->irq, NULL, wm5100_irq,
-                                                  irq_flags, "wm5100",
+                                                  irq_flags | IRQF_ONESHOT,
+                                                  "wm5100",
                                                   wm5100);
 
                if (ret != 0) {