qlcnic: fix unchecked return value

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Function pci_find_ext_capability() may return 0, which is an invalid
address. In function qlcnic_sriov_virtid_fn(), its return value is used
without validation. This may result in invalid memory access bugs. This
patch fixes the bug.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Pan Bian 2017-04-23 20:04:04 +08:00 • committed by David S. Miller

parent 2a39e7aa8a

commit 91ec701a55

1 changed files with 2 additions and 0 deletions

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drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c

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