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x86/PCI: Reword comments

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Reword comments so they make sense.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2014-01-24 10:38:40 -07:00
parent 8928d5a66d
commit affbda86fe
1 changed files with 3 additions and 6 deletions
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9
arch/x86/pci/acpi.c
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@ -519,15 +519,12 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
sd->domain = domain;
sd->node = node;
sd->companion = device;
/*
* Maybe the desired pci bus has been already scanned. In such case
* it is unnecessary to scan the pci bus with the given domain,busnum.
*/
bus = pci_find_bus(domain, busnum);
if (bus) {
/*
* If the desired bus exits, the content of bus->sysdata will
* be replaced by sd.
* If the desired bus has been scanned already, replace
* its bus->sysdata.
*/
memcpy(bus->sysdata, sd, sizeof(*sd));
kfree(info);