Merge branch '2020-11-20/fix-mig-segfault' into 'master'

Honor OPT_NO_CGROUPS in nvc_device_mig_caps_mount

See merge request nvidia/container-toolkit/libnvidia-container!43

src/nvc_mount.c

@@ -1068,8 +1068,9 @@ nvc_device_mig_caps_mount(struct nvc_context *ctx, const struct nvc_container *c
         // Check if NV_CAPS_MODULE_NAME exists as a major device, and if so,
         // mount in the appropriate /dev based capabilities as devices.
         if ((nvcaps_major = nvidia_get_chardev_major(NV_CAPS_MODULE_NAME)) != -1) {
-            if (setup_mig_minor_cgroups(&ctx->err, cnt, nvcaps_major, &dev->node) < 0)
-                goto fail;
+                if (!(cnt->flags & OPT_NO_CGROUPS))
+                        if (setup_mig_minor_cgroups(&ctx->err, cnt, nvcaps_major, &dev->node) < 0)
+                                goto fail;
         }
 
         // Set the return value to indicate success.