dm: fix possible null pointer dereference in pci_gvt_deinit
will access null pointer if 'gvt' is null.
@@ -262,7 +262,8 @@ pci_gvt_deinit(struct vmctx *ctx, struct pci_vdev *pi, char *opts)
int ret;
struct pci_gvt *gvt = pi->arg;
- if (gvt && gvt->host_config) {
+ if (gvt) {
+ if (gvt->host_config) {
/* Free the allocated host_config */
free(gvt->host_config);
gvt->host_config = NULL;
@@ -275,6 +276,7 @@ pci_gvt_deinit(struct vmctx *ctx, struct pci_vdev *pi, char *opts)
free(gvt);
pi->arg = NULL;
}
+}
struct pci_vdev_ops pci_ops_gvt = {
.class_name = "pci-gvt",
