3.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jan Luebbe <jlu@pengutronix.de>

commit fee0de7791f967c2c5f0d43eb7b7261761b45e64 upstream.

Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Cc: Alessandro Zummo <redacted>
Cc: Roland Stigge <redacted>
Cc: Grant Likely <redacted>
Tested-by: Roland Stigge <redacted>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <redacted>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/rtc/rtc-imxdi.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/rtc/rtc-imxdi.c
+++ b/drivers/rtc/rtc-imxdi.c

@@ -392,6 +392,8 @@ static int dryice_rtc_probe(struct platf
 	if (imxdi->ioaddr == NULL)
 		return -ENOMEM;
 
+	spin_lock_init(&imxdi->irq_lock);
+
 	imxdi->irq = platform_get_irq(pdev, 0);
 	if (imxdi->irq < 0)
 		return imxdi->irq;