netdev - [PATCH] hso: fix rx parsing logic when skb allocation fails

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Message-Id: <1423835462-3454-1-git-send-email-aleksander@aleksander.es>
Date:	Fri, 13 Feb 2015 14:51:02 +0100
From:	Aleksander Morgado <aleksander@...ksander.es>
To:	linux-usb@...r.kernel.org, netdev@...r.kernel.org
Cc:	j.dumon@...ion.com, Aleksander Morgado <aleksander@...ksander.es>
Subject: [PATCH] hso: fix rx parsing logic when skb allocation fails

If skb allocation fails once the IP header has been received, the rx state is
being set to WAIT_SYNC. The logic, though, shouldn't directly return, as the
buffer may contain a full packet, and therefore the WAIT_SYNC state needs to be
processed (resetting state to WAIT_IP, clearing rx_buf_size and re-initializing
rx_buf_missing).

So, just let the while loop continue so that in the next iteration the WAIT_SYNC
state cleanly stops the loop. The WAIT_SYNC processing will be done just after
that, only if the end of packet is flagged.

Signed-off-by: Aleksander Morgado <aleksander@...ksander.es>
---
 drivers/net/usb/hso.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 6b8efca..9cdfb3f 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -914,7 +914,7 @@ static void packetizeRx(struct hso_net *odev, unsigned char *ip_pkt,
 					/* We got no receive buffer. */
 					D1("could not allocate memory");
 					odev->rx_parse_state = WAIT_SYNC;
-					return;
+					continue;
 				}

 				/* Copy what we got so far. make room for iphdr
-- 
2.3.0

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