From f81b0ac475f617c93aeb372140b20cae267294c3 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Sat, 8 Sep 2012 06:01:02 +0000 Subject: [PATCH] cnic: Free UIO rings when the device is closed. This will free up unneeded memory. Reviewed-by: Eddie Wai Reviewed-by: Bhanu Prakash Gollapudi Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/cnic.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c index ff3589405dce..38be4d91783b 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;