diff options
| author |   Michael Chan <michael.chan@broadcom.com> | 2019-06-29 11:16:45 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-06-30 16:00:26 -0700 |
| commit | d27e2ca1166aefd54d9c48fb6647dee8115a5dfc (patch) | |
| tree | a7b44ae08f0a0bbe37d18de07a5f193150bf58ba /drivers | |
| parent | bnxt_en: Disable bus master during PCI shutdown and driver unload. (diff) | |
| download | linux-dev-d27e2ca1166aefd54d9c48fb6647dee8115a5dfc.tar.xz linux-dev-d27e2ca1166aefd54d9c48fb6647dee8115a5dfc.zip | |
bnxt_en: Fix ethtool selftest crash under error conditions.
After ethtool loopback packet tests, we re-open the nic for the next
IRQ test. If the open fails, we must not proceed with the IRQ test
or we will crash with NULL pointer dereference. Fix it by checking
the bnxt_open_nic() return code before proceeding.
Reported-by: Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com>
Fixes: 67fea463fd87 ("bnxt_en: Add interrupt test to ethtool -t selftest.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index a6c7baf38036..ec68707c3338 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -2842,7 +2842,7 @@ static void bnxt_self_test(struct net_device *dev, struct ethtool_test *etest, bool offline = false; u8 test_results = 0; u8 test_mask = 0; - int rc, i; + int rc = 0, i; if (!bp->num_tests || !BNXT_SINGLE_PF(bp)) return; @@ -2913,9 +2913,9 @@ static void bnxt_self_test(struct net_device *dev, struct ethtool_test *etest, } bnxt_hwrm_phy_loopback(bp, false, false); bnxt_half_close_nic(bp); - bnxt_open_nic(bp, false, true); + rc = bnxt_open_nic(bp, false, true); } - if (bnxt_test_irq(bp)) { + if (rc || bnxt_test_irq(bp)) { buf[BNXT_IRQ_TEST_IDX] = 1; etest->flags |= ETH_TEST_FL_FAILED; } |