From: Michael Chan <mchan@broadcom.com>
Date: Sat, 8 Sep 2012 06:01:02 +0000 (+0000)
Subject: cnic: Free UIO rings when the device is closed.
X-Git-Tag: v3.7-rc1~145^2~189
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f81b0ac475f617c93aeb372140b20cae267294c3;p=platform%2Fkernel%2Flinux-3.10.git

cnic: Free UIO rings when the device is closed.

This will free up unneeded memory.

Reviewed-by: Eddie Wai <eddie.wai@broadcom.com>
Reviewed-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c
index ff35894..38be4d9 100644
--- a/drivers/net/ethernet/broadcom/cnic.c
+++ b/drivers/net/ethernet/broadcom/cnic.c
@@ -868,6 +868,8 @@ static void cnic_free_resc(struct cnic_dev *dev)
 	if (udev) {
 		udev->dev = NULL;
 		cp->udev = NULL;
+		if (udev->uio_dev == -1)
+			__cnic_free_uio_rings(udev);
 	}
 
 	cnic_free_context(dev);
@@ -1039,6 +1041,11 @@ static int cnic_alloc_uio_rings(struct cnic_dev *dev, int pages)
 	list_for_each_entry(udev, &cnic_udev_list, list) {
 		if (udev->pdev == dev->pcidev) {
 			udev->dev = dev;
+			if (__cnic_alloc_uio_rings(udev, pages)) {
+				udev->dev = NULL;
+				read_unlock(&cnic_dev_lock);
+				return -ENOMEM;
+			}
 			cp->udev = udev;
 			read_unlock(&cnic_dev_lock);
 			return 0;