Author: kib
Date: Sun Dec 2 13:29:13 2018
New Revision: 341400
URL: https://svnweb.freebsd.org/changeset/base/341400
Log:
Add a comment noting that the additional range checks are not needed.
The object size is set in the dsp_mmap_single() which provides the
range limit by vm_fault().
Reported by: C Turt <ect...@gmail.com>
Reviewed by: alc, markj
admbug: 781
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Modified:
head/sys/dev/sound/pcm/dsp.c
Modified: head/sys/dev/sound/pcm/dsp.c
==============================================================================
--- head/sys/dev/sound/pcm/dsp.c Sun Dec 2 13:27:36 2018
(r341399)
+++ head/sys/dev/sound/pcm/dsp.c Sun Dec 2 13:29:13 2018
(r341400)
@@ -2205,7 +2205,10 @@ dsp_mmap(struct cdev *i_dev, vm_ooffset_t offset, vm_p
int nprot, vm_memattr_t *memattr)
{
- /* XXX memattr is not honored */
+ /*
+ * offset is in range due to checks in dsp_mmap_single().
+ * XXX memattr is not honored.
+ */
*paddr = vtophys(offset);
return (0);
}
_______________________________________________
svn-src-all@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
