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PCI: hv: Fix return value check in hv_pci_assign_slots() 

In case of error, the function pci_create_slot() returns ERR_PTR() and
never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR().

Fixes: a15f2c08c7 ("PCI: hv: support reporting serial number as slot information")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wei Yongjun 2018-09-21 02:53:17 +00:00 committed by David S. Miller
parent 86f9bd1ff6
commit 54be5b8ce3
1 changed files with 3 additions and 1 deletions
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4
drivers/pci/controller/pci-hyperv.c
View File

@ -1484,8 +1484,10 @@ static void hv_pci_assign_slots(struct hv_pcibus_device *hbus)
snprintf(name, SLOT_NAME_SIZE, "%u", hpdev->desc.ser);
hpdev->pci_slot = pci_create_slot(hbus->pci_bus, slot_nr,
name, NULL);
if (!hpdev->pci_slot)
if (IS_ERR(hpdev->pci_slot)) {
pr_warn("pci_create slot %s failed\n", name);
hpdev->pci_slot = NULL;
}
}
}