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staging: octeon: prevent poll during rx init

Prevent poll before the RX init has been completed.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Aaro Koskinen 9 years ago
parent
commit
d48f10fc61
1 changed files with 6 additions and 0 deletions
  1. 6 0
      drivers/staging/octeon/ethernet-rx.c

+ 6 - 0
drivers/staging/octeon/ethernet-rx.c

@@ -43,6 +43,8 @@
 
 #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;
@@ -444,6 +446,9 @@ void cvm_oct_poll_controller(struct net_device *dev)
 {
 	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)))
@@ -524,6 +529,7 @@ void cvm_oct_rx_initialize(void)
 		 */
 		napi_schedule(&oct_rx_group[i].napi);
 	}
+	atomic_inc(&oct_rx_ready);
 }
 
 void cvm_oct_rx_shutdown(void)