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virpci: Don't error on unbinded devices

Browse Source 
https://bugzilla.redhat.com/show_bug.cgi?id=1018897

If a PCI deivce is not binded to any driver (e.g. there's yet no PCI
driver in the linux kernel) but still users want to passthru the device
we fail the whole operation as we fail to resolve the 'driver' link
under the PCI device sysfs tree. Obviously, this is not a fatal error
and it shouldn't be error at all.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit df4283a55bf3516b333352e2052dbe3317936953)
This commit is contained in:
Michal Privoznik 2013-10-31 10:32:58 +00:00 committed by Cole Robinson
parent 13cfcad6fd
commit 79d347c908
1 changed files with 1 additions and 4 deletions
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5
src/util/virpci.c
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@ -1095,11 +1095,8 @@ virPCIDeviceBindToStub(virPCIDevicePtr dev,
const char *newDriverName = NULL;
if (virPCIDriverDir(&stubDriverPath, stubDriverName) < 0 ||
virPCIFile(&driverLink, dev->name, "driver") < 0 ||
virPCIDeviceGetDriverPathAndName(dev, &oldDriverPath,
&oldDriverName) < 0) {
virPCIFile(&driverLink, dev->name, "driver") < 0)
goto cleanup;
}
if (virFileExists(driverLink)) {
if (virFileLinkPointsTo(driverLink, stubDriverPath)) {