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bnx2x: avoid null pointer dereference when enabling SR-IOV

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Fixed NULL pointer dereference when dynamically activating SR-IOV after vf
database failed to be allocated in probe stage (for example due to no ARI
support in pci hub).

Signed-off-by: Michal Kalderon <michals@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michal Kalderon 2013-12-04 12:04:54 +02:00 committed by David S. Miller
parent 78ac814f12
commit c8781cf4a3
1 changed files with 5 additions and 0 deletions
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5
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
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@ -3114,6 +3114,11 @@ int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs_param)
{
struct bnx2x *bp = netdev_priv(pci_get_drvdata(dev));
if (!IS_SRIOV(bp)) {
BNX2X_ERR("failed to configure SR-IOV since vfdb was not allocated. Check dmesg for errors in probe stage\n");
return -EINVAL;
}
DP(BNX2X_MSG_IOV, "bnx2x_sriov_configure called with %d, BNX2X_NR_VIRTFN(bp) was %d\n",
num_vfs_param, BNX2X_NR_VIRTFN(bp));