regmap: PM fix for v3.9

A simple fix to stop us leaking a runtime PM reference in the case where
 we fail to enable a device.
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Merge tag 'regmap-v3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap PM fix from Mark Brown:
 "A simple fix to stop us leaking a runtime PM reference in the case
  where we fail to enable a device."

* tag 'regmap-v3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: irq: call pm_runtime_put in pm_runtime_get_sync failed case

drivers/base/regmap/regmap-irq.c

@@ -184,6 +184,7 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
 		if (ret < 0) {
 			dev_err(map->dev, "IRQ thread failed to resume: %d\n",
 				ret);
+			pm_runtime_put(map->dev);
 			return IRQ_NONE;
 		}
 	}