[openib-general] [PATCH 5/5] Hold the iwch device mutex around cxio_rdev_open().

[Steve Wise]

From: Steve Wise <swise at opengridcomputing.com>

Signed-off-by: Steve Wise <swise at opengridcomputing.com>
---

 drivers/infiniband/hw/cxgb3/iwch.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/infiniband/hw/cxgb3/iwch.c b/drivers/infiniband/hw/cxgb3/iwch.c
index 0c95f2c..c353a9b 100644
--- a/drivers/infiniband/hw/cxgb3/iwch.c
+++ b/drivers/infiniband/hw/cxgb3/iwch.c
@@ -119,7 +119,10 @@ static void open_rnic_dev(struct t3cdev 
 	rnicp->rdev.ulp = rnicp;
 	rnicp->rdev.t3cdev_p = tdev;
 
+	mutex_lock(&dev_mutex);
+
 	if (cxio_rdev_open(&rnicp->rdev)) {
+		mutex_unlock(&dev_mutex);
 		printk(KERN_ERR MOD "Unable to open CXIO rdev\n");
 		ib_dealloc_device(&rnicp->ibdev);
 		return;
@@ -127,7 +130,6 @@ static void open_rnic_dev(struct t3cdev 
 
 	rnic_init(rnicp);
 
-	mutex_lock(&dev_mutex);
 	list_add_tail(&rnicp->entry, &dev_list);
 	mutex_unlock(&dev_mutex);