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| author | Florian Fainelli | 2014-09-08 20:37:51 +0200 |
|---|---|---|
| committer | David S. Miller | 2014-09-09 01:02:49 +0200 |
| commit | fe24ba082b8483c81f546d24e40a55624295b85d (patch) | |
| tree | 8beda3a9ad3031dac7a4d85e07950e3b9df8fc9a /drivers/net/ethernet/broadcom/genet/bcmgenet.c | |
| parent | net/mlx4_en: do not ignore autoneg in mlx4_en_set_pauseparam() (diff) | |
| download | kernel-qcow2-linux-fe24ba082b8483c81f546d24e40a55624295b85d.tar.gz kernel-qcow2-linux-fe24ba082b8483c81f546d24e40a55624295b85d.tar.xz kernel-qcow2-linux-fe24ba082b8483c81f546d24e40a55624295b85d.zip | |
net: systemport: check harder for out of memory conditions
There is a potential case where we might be failing to refill a
control block, leaving it with both a NULL skb pointer *and* a NULL
dma_unmap_addr.
The way we process incoming packets, by first calling
dma_unmap_single(), and then only checking for a potential NULL skb can
lead to situations where do pass a NULL dma_unmap_addr() to
dma_unmap_single(), resulting in an oops.
Fix this my moving the NULL skb check earlier, since no backing skb
also means no corresponding DMA mapping for this packet.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/genet/bcmgenet.c')
0 files changed, 0 insertions, 0 deletions