staging: octeon: prevent poll during rx init

Prevent poll before the RX init has been completed.

Signed-off-by: Aaro Koskinen <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/octeon/ethernet-rx.c

···
 
 #include <asm/octeon/cvmx-gmxx-defs.h>
 
+static atomic_t oct_rx_ready = ATOMIC_INIT(0);
+
 static struct oct_rx_group {
 	int irq;
 	int group;
···
 {
 	int i;
 
+	if (!atomic_read(&oct_rx_ready))
+		return;
+
 	for (i = 0; i < ARRAY_SIZE(oct_rx_group); i++) {
 
 		if (!(pow_receive_groups & BIT(i)))
···
 		 */
 		napi_schedule(&oct_rx_group[i].napi);
 	}
+	atomic_inc(&oct_rx_ready);
 }
 
 void cvm_oct_rx_shutdown(void)