Index: sys/compat/linux/linux_ioctl.c
===================================================================
--- sys/compat/linux/linux_ioctl.c	(revision 189231)
+++ sys/compat/linux/linux_ioctl.c	(working copy)
@@ -2635,19 +2635,16 @@
 	/* Iterate over the ioctl handlers */
 	cmd = args->cmd & 0xffff;
 	sx_slock(&linux_ioctl_sx);
-	mtx_lock(&Giant);
 	TAILQ_FOREACH(he, &handlers, list) {
 		if (cmd >= he->low && cmd <= he->high) {
 			error = (*he->func)(td, args);
 			if (error != ENOIOCTL) {
-				mtx_unlock(&Giant);
 				sx_sunlock(&linux_ioctl_sx);
 				fdrop(fp, td);
 				return (error);
 			}
 		}
 	}
-	mtx_unlock(&Giant);
 	sx_sunlock(&linux_ioctl_sx);
 	fdrop(fp, td);