invalid fadvise parameter

[Ulrich Drepper]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

The len parameter for fadvise has a signed type and negative values
passed must be rejected.  The attached patch does the job.

- --
â Ulrich Drepper â Red Hat, Inc. â 444 Castro St â Mountain View, CA â
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.3 (GNU/Linux)

iD8DBQFALHBE2ijCOnn/RHQRAlFAAJ99cQ5raRpz2OuSRSi3Xf4WdYuPvwCgycGi
0QZLMcHfqOcxjEzDl2tGDuA=
=igyM
-----END PGP SIGNATURE-----
--- mm/fadvise.c	2004-01-19 20:09:03.000000000 -0800
+++ mm/fadvise.c-new	2004-02-12 22:33:32.000000000 -0800
@@ -33,7 +33,7 @@
 		return -EBADF;
 
 	mapping = file->f_mapping;
-	if (!mapping) {
+	if (!mapping || len < 0) {
 		ret = -EINVAL;
 		goto out;
 	}