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From: Jean Tourrilhes <jt@bougret.hpl.hp.com>
To: "David S. Miller" <davem@redhat.com>,
	Linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: [PATCH 2.6 IrDA] gcc warning fix
Date: Wed, 7 Jan 2004 18:35:14 -0800	[thread overview]
Message-ID: <20040108023514.GF13620@bougret.hpl.hp.com> (raw)

ir2609_afirda_max_string.diff :
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	o [FEATURE] Fix a gcc warning


diff -u -p linux/net/irda/af_irda.d5.c linux/net/irda/af_irda.c
--- linux/net/irda/af_irda.d5.c	Wed Nov 19 16:21:42 2003
+++ linux/net/irda/af_irda.c	Wed Nov 19 16:26:04 2003
@@ -1890,11 +1890,10 @@ static int irda_setsockopt(struct socket
 		case IAS_STRING:
 			/* Should check charset & co */
 			/* Check length */
-			if(ias_opt->attribute.irda_attrib_string.len >
-			   IAS_MAX_STRING) {
-				kfree(ias_opt);
-				return -EINVAL;
-			}
+			/* The length is encoded in a __u8, and
+			 * IAS_MAX_STRING == 256, so there is no way
+			 * userspace can pass us a string too large.
+			 * Jean II */
 			/* NULL terminate the string (avoid troubles) */
 			ias_opt->attribute.irda_attrib_string.string[ias_opt->attribute.irda_attrib_string.len] = '\0';
 			/* Add a string attribute */

                 reply	other threads:[~2004-01-08  2:38 UTC|newest]

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