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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Tue, 18 Jan 2011 22:56:10 +0000 (UTC)
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Subject: svn commit: r217563 - head/sys/amd64/amd64
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Author: kib
Date: Tue Jan 18 22:56:10 2011
New Revision: 217563
URL: http://svn.freebsd.org/changeset/base/217563

Log:
  Use malloc(9) instead of kmem_alloc(9) for temporal copy of the
  user-supplied descriptor array.
  
  Noted and reviewed by:	jhb (previous version)
  MFC after:	1 week

Modified:
  head/sys/amd64/amd64/sys_machdep.c

Modified: head/sys/amd64/amd64/sys_machdep.c
==============================================================================
--- head/sys/amd64/amd64/sys_machdep.c	Tue Jan 18 22:19:55 2011	(r217562)
+++ head/sys/amd64/amd64/sys_machdep.c	Tue Jan 18 22:56:10 2011	(r217563)
@@ -105,19 +105,13 @@ sysarch_ldt(struct thread *td, struct sy
 			return (EINVAL);
 		set_pcb_flags(td->td_pcb, PCB_FULL_IRET);
 		if (largs->descs != NULL) {
-			lp = (struct user_segment_descriptor *)
-			    kmem_alloc(kernel_map, largs->num *
-			    sizeof(struct user_segment_descriptor));
-			if (lp == NULL) {
-				error = ENOMEM;
-				break;
-			}
+			lp = malloc(largs->num * sizeof(struct
+			    user_segment_descriptor), M_TEMP, M_WAITOK);
 			error = copyin(largs->descs, lp, largs->num *
 			    sizeof(struct user_segment_descriptor));
 			if (error == 0)
 				error = amd64_set_ldt(td, largs, lp);
-			kmem_free(kernel_map, (vm_offset_t)lp, largs->num *
-			    sizeof(struct user_segment_descriptor));
+			free(lp, M_TEMP);
 		} else {
 			error = amd64_set_ldt(td, largs, NULL);
 		}