From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Fri, 16 Sep 2011 12:50:30 +0000 (-0400)
Subject: target: check hex2bin result
X-Git-Tag: v3.2-rc1~78^2~15^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8c35ad20270de91d0f3bfe521daa3b7983ee8db7;p=platform%2Fkernel%2Flinux-3.10.git

target: check hex2bin result

Now that hex2bin does error checking, on error add debugging error msg.

Changelog v1 (update):
- fixed definition of 'ret'
- hex2bin now returns an int

Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
---

diff --git a/drivers/target/target_core_fabric_lib.c b/drivers/target/target_core_fabric_lib.c
index c4ea3a9a..39f021b 100644
--- a/drivers/target/target_core_fabric_lib.c
+++ b/drivers/target/target_core_fabric_lib.c
@@ -63,6 +63,7 @@ u32 sas_get_pr_transport_id(
 	unsigned char *buf)
 {
 	unsigned char *ptr;
+	int ret;
 
 	/*
 	 * Set PROTOCOL IDENTIFIER to 6h for SAS
@@ -74,7 +75,9 @@ u32 sas_get_pr_transport_id(
 	 */
 	ptr = &se_nacl->initiatorname[4]; /* Skip over 'naa. prefix */
 
-	hex2bin(&buf[4], ptr, 8);
+	ret = hex2bin(&buf[4], ptr, 8);
+	if (ret < 0)
+		pr_debug("sas transport_id: invalid hex string\n");
 
 	/*
 	 * The SAS Transport ID is a hardcoded 24-byte length
@@ -156,8 +159,9 @@ u32 fc_get_pr_transport_id(
 	unsigned char *buf)
 {
 	unsigned char *ptr;
-	int i;
+	int i, ret;
 	u32 off = 8;
+
 	/*
 	 * PROTOCOL IDENTIFIER is 0h for FCP-2
 	 *
@@ -174,7 +178,9 @@ u32 fc_get_pr_transport_id(
 			i++;
 			continue;
 		}
-		hex2bin(&buf[off++], &ptr[i], 1);
+		ret = hex2bin(&buf[off++], &ptr[i], 1);
+		if (ret < 0)
+			pr_debug("fc transport_id: invalid hex string\n");
 		i += 2;
 	}
 	/*