igbvf: fix memory leak when ring size changed while interface down
This patch resolves a memory leak which occurs while changing the ring size
while the interface is down.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/igbvf/ethtool.c b/drivers/net/igbvf/ethtool.c
index ee17a09..c68265b 100644
--- a/drivers/net/igbvf/ethtool.c
+++ b/drivers/net/igbvf/ethtool.c
@@ -279,7 +279,7 @@
{
struct igbvf_adapter *adapter = netdev_priv(netdev);
struct igbvf_ring *temp_ring;
- int err;
+ int err = 0;
u32 new_rx_count, new_tx_count;
if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
@@ -299,15 +299,22 @@
return 0;
}
- temp_ring = vmalloc(sizeof(struct igbvf_ring));
- if (!temp_ring)
- return -ENOMEM;
-
while (test_and_set_bit(__IGBVF_RESETTING, &adapter->state))
msleep(1);
- if (netif_running(adapter->netdev))
- igbvf_down(adapter);
+ if (!netif_running(adapter->netdev)) {
+ adapter->tx_ring->count = new_tx_count;
+ adapter->rx_ring->count = new_rx_count;
+ goto clear_reset;
+ }
+
+ temp_ring = vmalloc(sizeof(struct igbvf_ring));
+ if (!temp_ring) {
+ err = -ENOMEM;
+ goto clear_reset;
+ }
+
+ igbvf_down(adapter);
/*
* We can't just free everything and then setup again,
@@ -339,14 +346,11 @@
memcpy(adapter->rx_ring, temp_ring,sizeof(struct igbvf_ring));
}
-
- err = 0;
err_setup:
- if (netif_running(adapter->netdev))
- igbvf_up(adapter);
-
- clear_bit(__IGBVF_RESETTING, &adapter->state);
+ igbvf_up(adapter);
vfree(temp_ring);
+clear_reset:
+ clear_bit(__IGBVF_RESETTING, &adapter->state);
return err;
}
