From 210ceb4f68dcc7bede2e3af547abd6f661a7bfda Mon Sep 17 00:00:00 2001
From: Julian Andres Klode <jak@jak-linux.org>
Date: Tue, 27 Sep 2011 19:01:01 +0200
Subject: [PATCH] staging: nvec: Reject incomplete messages
Reject incomplete messages, causing the request to be
transmitted again. This should fix various problems
out there.
Signed-off-by: Julian Andres Klode <jak@jak-linux.org>
Acked-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/staging/nvec/nvec.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index e845f58a8d77..8c01723d681a 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -439,11 +439,16 @@ static void nvec_tx_completed(struct nvec_chip *nvec)
*/
static void nvec_rx_completed(struct nvec_chip *nvec)
{
- if (nvec->rx->pos != nvec_msg_size(nvec->rx))
+ if (nvec->rx->pos != nvec_msg_size(nvec->rx)) {
dev_err(nvec->dev, "RX incomplete: Expected %u bytes, got %u\n",
(uint) nvec_msg_size(nvec->rx),
(uint) nvec->rx->pos);
+ nvec_msg_free(nvec, nvec->rx);
+ nvec->state = 0;
+ return;
+ }
+
spin_lock(&nvec->rx_lock);
/* add the received data to the work list
--
2.34.1