[libvirt] [PATCH 18/26] qemu: Resolve Coverity FORWARD_NULL

[John Ferlan]

If the qemuMigrationEatCookie() fails to set mig, we jump to cleanup:
which will call qemuMigrationCancelDriveMirror() without first checking
if mig == NULL

Signed-off-by: John Ferlan <jferlan at redhat.com>
---
 src/qemu/qemu_migration.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 9cfb77e..d6b0f29 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -3428,7 +3428,8 @@ qemuMigrationRun(virQEMUDriverPtr driver,
         orig_err = virSaveLastError();
 
     /* cancel any outstanding NBD jobs */
-    qemuMigrationCancelDriveMirror(mig, driver, vm);
+    if (mig)
+        qemuMigrationCancelDriveMirror(mig, driver, vm);
 
     if (spec->fwdType != MIGRATION_FWD_DIRECT) {
         if (iothread && qemuMigrationStopTunnel(iothread, ret < 0) < 0)
-- 
1.9.3