This fixes "lost interrupt" problems that occurred on SPI-based systems.
cw1200_irq_handler() expects the hwbus to be locked, but on the
SPI-path, that lock wasn't taken (unlike in the SDIO-path, where the
generic SDIO-code takes care of acquiring the lock).

Cc: [email protected]
Signed-off-by: David Mosberger <[email protected]>
Signed-off-by: Solomon Peachy <[email protected]>
---
Please consider this for 3.12-rc if it's not too late!

 drivers/net/wireless/cw1200/cw1200_spi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c 
b/drivers/net/wireless/cw1200/cw1200_spi.c
index 899cad3..755a0c8 100644
--- a/drivers/net/wireless/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/cw1200/cw1200_spi.c
@@ -237,7 +237,9 @@ static irqreturn_t cw1200_spi_irq_handler(int irq, void 
*dev_id)
        struct hwbus_priv *self = dev_id;
 
        if (self->core) {
+               cw1200_spi_lock(self);
                cw1200_irq_handler(self->core);
+               cw1200_spi_unlock(self);
                return IRQ_HANDLED;
        } else {
                return IRQ_NONE;
-- 
1.8.3.1

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