From: Jate Sujjavanich <jsujjavanich@syntech-fuelmaster.com>
Date: Wed, 29 Sep 2010 13:44:32 +0000 (-0400)
Subject: spi/m68knommu: Coldfire QSPI platform support
X-Git-Url: https://git.karo-electronics.de/?p=mv-sheeva.git;a=commitdiff_plain;h=0bc463426ab5eb39e76df637b29a4f191d01b8a0

spi/m68knommu: Coldfire QSPI platform support

After grabbing a msg from the msgq, the mcfqspi_work function calls
list_del_init on the mcfqspi->msgq which unintentionally deletes the rest
of the list before it can be processed. If qspi call was made using
spi_sync, this can result in a process hang.

Signed-off-by: Jate Sujjavanich <jsujjavanich@syntech-fuelmaster.com>
Acked-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---

diff --git a/drivers/spi/coldfire_qspi.c b/drivers/spi/coldfire_qspi.c
index 052b3c7fa6a..8856bcca9d2 100644
--- a/drivers/spi/coldfire_qspi.c
+++ b/drivers/spi/coldfire_qspi.c
@@ -317,7 +317,7 @@ static void mcfqspi_work(struct work_struct *work)
 		msg = container_of(mcfqspi->msgq.next, struct spi_message,
 				   queue);
 
-		list_del_init(&mcfqspi->msgq);
+		list_del_init(&msg->queue);
 		spin_unlock_irqrestore(&mcfqspi->lock, flags);
 
 		spi = msg->spi;