iser-target: Remove redundant assignment to local variable

No need to keep a local ib_dev as a device pointer.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index db5460a..0bab74b 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -346,12 +346,11 @@
 static int
 isert_create_device_ib_res(struct isert_device *device)
 {
-	struct ib_device *ib_dev = device->ib_device;
 	struct ib_device_attr *dev_attr;
-	int ret = 0;
+	int ret;
 
 	dev_attr = &device->dev_attr;
-	ret = isert_query_device(ib_dev, dev_attr);
+	ret = isert_query_device(device->ib_device, dev_attr);
 	if (ret)
 		return ret;