[patch 22/32] IrDA: Incorrect TTP header reservation

[Chris Wright]

-stable review patch.  If anyone has any objections, please let us know.
------------------

From: Jeet Chaudhuri <jeetlinux@xxxxxxxxxxx>

We must reserve SAR + MAX_HEADER bytes for IrLMP to fit in.
This fixes an oops reported (and fixed) by Jeet Chaudhuri, when max_sdu_size
is greater than 0.

Signed-off-by: Samuel Ortiz <samuel@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Chris Wright <chrisw@xxxxxxxxxxxx>

---
 net/irda/irttp.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- linux-2.6.19.orig/net/irda/irttp.c
+++ linux-2.6.19/net/irda/irttp.c
@@ -1099,7 +1099,7 @@ int irttp_connect_request(struct tsap_cb
 			return -ENOMEM;
 
 		/* Reserve space for MUX_CONTROL and LAP header */
-		skb_reserve(tx_skb, TTP_MAX_HEADER);
+		skb_reserve(tx_skb, TTP_MAX_HEADER + TTP_SAR_HEADER);
 	} else {
 		tx_skb = userdata;
 		/*
@@ -1348,7 +1348,7 @@ int irttp_connect_response(struct tsap_c
 			return -ENOMEM;
 
 		/* Reserve space for MUX_CONTROL and LAP header */
-		skb_reserve(tx_skb, TTP_MAX_HEADER);
+		skb_reserve(tx_skb, TTP_MAX_HEADER + TTP_SAR_HEADER);
 	} else {
 		tx_skb = userdata;
 		/*

--
-
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