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authorVeaceslav Falico <vfalico@redhat.com>2012-10-23 04:54:34 +0000
committerDavid S. Miller <davem@davemloft.net>2012-10-24 23:04:31 -0400
commita2fc66ce9f4669daeebc03d6891917b894c752a8 (patch)
tree3f362f7dff5c7af02776c1b829520c4e84e43d9a /drivers
parent37561f68bd527ec39076e32effdc7b1dcdfb17ea (diff)
pch_gbe: fix error handling in pch_gbe_up()
If we fail to allocate rx buffers pool by any reason, we'll just return with an error, however we've previously successfully requested an irq. Fix this by releasing the irq before returning the error. Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index a8854d04c275..4c4fe5b1a29a 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -1930,12 +1930,12 @@ int pch_gbe_up(struct pch_gbe_adapter *adapter)
struct net_device *netdev = adapter->netdev;
struct pch_gbe_tx_ring *tx_ring = adapter->tx_ring;
struct pch_gbe_rx_ring *rx_ring = adapter->rx_ring;
- int err;
+ int err = -EINVAL;
/* Ensure we have a valid MAC */
if (!is_valid_ether_addr(adapter->hw.mac.addr)) {
pr_err("Error: Invalid MAC address\n");
- return -EINVAL;
+ goto out;
}
/* hardware has been reset, we need to reload some things */
@@ -1948,13 +1948,13 @@ int pch_gbe_up(struct pch_gbe_adapter *adapter)
err = pch_gbe_request_irq(adapter);
if (err) {
- pr_err("Error: can't bring device up\n");
- return err;
+ pr_err("Error: can't bring device up - irq request failed\n");
+ goto out;
}
err = pch_gbe_alloc_rx_buffers_pool(adapter, rx_ring, rx_ring->count);
if (err) {
- pr_err("Error: can't bring device up\n");
- return err;
+ pr_err("Error: can't bring device up - alloc rx buffers pool failed\n");
+ goto freeirq;
}
pch_gbe_alloc_tx_buffers(adapter, tx_ring);
pch_gbe_alloc_rx_buffers(adapter, rx_ring, rx_ring->count);
@@ -1969,6 +1969,11 @@ int pch_gbe_up(struct pch_gbe_adapter *adapter)
netif_start_queue(adapter->netdev);
return 0;
+
+freeirq:
+ pch_gbe_free_irq(adapter);
+out:
+ return err;
}
/**