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qemuBuildCommandLine: Don't overwrite errors with NWFilter's one

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Currently, if there has been an error in building command line
process after virtual interfaces has been created, the flow jumps
to 'error' label, where virDomainConfNWFilterTeardown() is
called. This may report an error as well, but should not
overwrite the original cause why we jumped to 'error' label.
This commit is contained in:
Michal Privoznik 2013-04-24 14:06:40 +02:00
parent 278a833922
commit 19c345f2fe
1 changed files with 7 additions and 3 deletions
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6
src/qemu/qemu_command.c
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@ -5903,6 +5903,7 @@ qemuBuildCommandLine(virConnectPtr conn,
virDomainSnapshotObjPtr snapshot,
enum virNetDevVPortProfileOp vmop)
{
virErrorPtr originalError = NULL;
int i, j;
const char *emulator;
char uuid[VIR_UUID_STRING_BUFLEN];
@ -7837,9 +7838,12 @@ qemuBuildCommandLine(virConnectPtr conn,
virReportOOMError();
error:
virObjectUnref(cfg);
/* free up any resources in the network driver */
/* free up any resources in the network driver
* but don't overwrite the original error */
originalError = virSaveLastError();
for (i = 0; i <= last_good_net; i++)
virDomainConfNWFilterTeardown(def->nets[i]);
virSetError(originalError);
virCommandFree(cmd);
return NULL;
}