wimax/i2400m: fix the bootmode RX deadlock in SDIO driver

[pandora-kernel.git] / drivers / net / wimax / i2400m / sdio-rx.c

diff --git a/drivers/net/wimax/i2400m/sdio-rx.c b/drivers/net/wimax/i2400m/sdio-rx.c
index 321bead..f6ca51a 100644 (file)
--- a/drivers/net/wimax/i2400m/sdio-rx.c
+++ b/drivers/net/wimax/i2400m/sdio-rx.c
@@ -234,6 +234,13 @@ int i2400ms_rx_setup(struct i2400ms *i2400ms)
        init_waitqueue_head(&i2400ms->bm_wfa_wq);
        spin_lock(&i2400m->rx_lock);
        i2400ms->bm_wait_result = -EINPROGRESS;
+       /*
+        * Before we are about to enable the RX interrupt, make sure
+        * bm_ack_size is cleared to -EINPROGRESS which indicates
+        * no RX interrupt happened yet or the previous interrupt
+        * has been handled, we are ready to take the new interrupt
+        */
+       i2400ms->bm_ack_size = -EINPROGRESS;
        spin_unlock(&i2400m->rx_lock);
 
        sdio_claim_host(func);