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net/qede: add check for null return

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Test the return value of ecore_ptt_acquire for NULL.

Coverity issue: 257049
Fixes: d378cefab8 ("net/qede: add support for GENEVE tunneling offload")

Signed-off-by: Shahed Shaikh <shahed.shaikh@cavium.com>
This commit is contained in:
Shahed Shaikh 2018-01-27 13:15:34 -08:00 committed by Ferruh Yigit
parent 91709676ee
commit 5c4e4fff18
1 changed files with 10 additions and 1 deletions
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11
drivers/net/qede/qede_ethdev.c
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@ -681,7 +681,16 @@ qede_tunnel_update(struct qede_dev *qdev,
for_each_hwfn(edev, i) {
p_hwfn = &edev->hwfns[i];
p_ptt = IS_PF(edev) ? ecore_ptt_acquire(p_hwfn) : NULL;
if (IS_PF(edev)) {
p_ptt = ecore_ptt_acquire(p_hwfn);
if (!p_ptt) {
DP_ERR(p_hwfn, "Can't acquire PTT\n");
return -EAGAIN;
}
} else {
p_ptt = NULL;
}
rc = ecore_sp_pf_update_tunn_cfg(p_hwfn, p_ptt,
tunn_info, ECORE_SPQ_MODE_CB, NULL);
if (IS_PF(edev))