qemu: Don't crash when create fails early

Since commit 714080791778e3dfbd484ccb3953bffd820b8ba9 we are generating
socket path later than before -- when starting a domain.  That makes one
particular inconsistent state of a chardev, which was not possible
before, currently valid.  However, SELinux security driver forgot to
guard the main restoring function by a check for NULL-paths.  So make it
no-op for NULL paths, as in the DAC driver.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1300532

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
This commit is contained in:
Martin Kletzander 2016-02-02 22:08:59 +01:00
parent 1fe6d8bfa8
commit 1794a0103a

View File

@ -1024,6 +1024,12 @@ virSecuritySELinuxRestoreFileLabel(virSecurityManagerPtr mgr,
char *newpath = NULL;
char ebuf[1024];
/* Some paths are auto-generated, so let's be safe here and do
* nothing if nothing is needed.
*/
if (!path)
return 0;
VIR_INFO("Restoring SELinux context on '%s'", path);
if (virFileResolveLink(path, &newpath) < 0) {