Author: neel
Date: Sat Apr 13 05:11:21 2013
New Revision: 249435
URL: http://svnweb.freebsd.org/changeset/base/249435
Log:
Use the MAKEDEV_CHECKNAME flag to check for an invalid device name and return
an error instead of panicking.
Obtained from: NetApp
Modified:
head/sys/amd64/vmm/vmm_dev.c
Modified: head/sys/amd64/vmm/vmm_dev.c
==============================================================================
--- head/sys/amd64/vmm/vmm_dev.c Sat Apr 13 02:15:59 2013
(r249434)
+++ head/sys/amd64/vmm/vmm_dev.c Sat Apr 13 05:11:21 2013
(r249435)
@@ -497,8 +497,12 @@ sysctl_vmm_create(SYSCTL_HANDLER_ARGS)
return (EEXIST);
}
- sc->cdev = make_dev(&vmmdevsw, 0, UID_ROOT, GID_WHEEL, 0600,
- "vmm/%s", buf);
+ error = make_dev_p(MAKEDEV_CHECKNAME, &sc->cdev, &vmmdevsw, NULL,
+ UID_ROOT, GID_WHEEL, 0600, "vmm/%s", buf);
+ if (error != 0) {
+ vmmdev_destroy(sc, TRUE);
+ return (error);
+ }
sc->cdev->si_drv1 = sc;
return (0);
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