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authorUrsula Braun <ursula.braun@de.ibm.com>2014-05-13 14:38:02 +0200
committerDavid S. Miller <davem@davemloft.net>2014-05-14 15:38:39 -0400
commitf5738e2ef88070ef1372e6e718124d88e9abe4ac (patch)
treebe10857725cb3d1dbaca1a8c6c0f2d94e4bb190b /net/iucv/af_iucv.c
parentbe2net: enable interrupts in EEH resume (diff)
downloadlinux-dev-f5738e2ef88070ef1372e6e718124d88e9abe4ac.tar.xz
linux-dev-f5738e2ef88070ef1372e6e718124d88e9abe4ac.zip
af_iucv: wrong mapping of sent and confirmed skbs
When sending data through IUCV a MESSAGE COMPLETE interrupt signals that sent data memory can be freed or reused again. With commit f9c41a62bba3f3f7ef3541b2a025e3371bcbba97 "af_iucv: fix recvmsg by replacing skb_pull() function" the MESSAGE COMPLETE callback iucv_callback_txdone() identifies the wrong skb as being confirmed, which leads to data corruption. This patch fixes the skb mapping logic in iucv_callback_txdone(). Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Cc: <stable@vger.kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/iucv/af_iucv.c')
-rw-r--r--net/iucv/af_iucv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 01e77b0ae075..8c9d7302c846 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1830,7 +1830,7 @@ static void iucv_callback_txdone(struct iucv_path *path,
spin_lock_irqsave(&list->lock, flags);
while (list_skb != (struct sk_buff *)list) {
- if (msg->tag != IUCV_SKB_CB(list_skb)->tag) {
+ if (msg->tag == IUCV_SKB_CB(list_skb)->tag) {
this = list_skb;
break;
}