[PATCH 3.12 2/2] cw1200: Use a threaded oneshot irq handler for cw1200_spi

[Solomon Peachy <pizza@shaftnet.org>]

This supercedes the older patch ("cw1200: Don't perform SPI transfers in
interrupt context") that badly attempted to fix this problem.

This is a far simpler solution, which has the added benefit of 
actually working.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
---
 drivers/net/wireless/cw1200/cw1200_spi.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c
index 5a64ac9..899cad3 100644
--- a/drivers/net/wireless/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/cw1200/cw1200_spi.c
@@ -250,9 +250,10 @@ static int cw1200_spi_irq_subscribe(struct hwbus_priv *self)
 
 	pr_debug("SW IRQ subscribe\n");
 
-	ret = request_any_context_irq(self->func->irq, cw1200_spi_irq_handler,
-				      IRQF_TRIGGER_HIGH,
-				      "cw1200_wlan_irq", self);
+	ret = request_threaded_irq(self->func->irq, NULL,
+				   cw1200_spi_irq_handler,
+				   IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+				   "cw1200_wlan_irq", self);
 	if (WARN_ON(ret < 0))
 		goto exit;
 
-- 
1.8.3.1