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libxl_driver.c: validate 'driverName' earlier in libxlNodeDeviceDetachFlags()

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The validation of 'driverName' does not depend on any other state and can be
done right on the start of the function. We can fail earlier while avoiding
a cleanup jump.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Daniel Henrique Barboza 2021-01-30 13:59:06 -03:00
parent fc71d91428
commit 04871c511e
1 changed files with 7 additions and 7 deletions
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14
src/libxl/libxl_driver.c
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@ -5784,6 +5784,12 @@ libxlNodeDeviceDetachFlags(virNodeDevicePtr dev,
virCheckFlags(0, -1);
if (driverName && STRNEQ(driverName, "xen")) {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported driver name '%s'"), driverName);
return -1;
}
if (!(nodeconn = virGetConnectNodeDev()))
goto cleanup;
@ -5815,13 +5821,7 @@ libxlNodeDeviceDetachFlags(virNodeDevicePtr dev,
if (!pci)
goto cleanup;
if (!driverName || STREQ(driverName, "xen")) {
virPCIDeviceSetStubDriver(pci, VIR_PCI_STUB_DRIVER_XEN);
} else {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported driver name '%s'"), driverName);
goto cleanup;
}
virPCIDeviceSetStubDriver(pci, VIR_PCI_STUB_DRIVER_XEN);
if (virHostdevPCINodeDeviceDetach(hostdev_mgr, pci) < 0)
goto cleanup;