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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>
This commit is contained in:
Michael Chan 2012-09-08 06:01:02 +00:00 committed by David S. Miller
parent 74dd0c4209
commit f81b0ac475
1 changed files with 7 additions and 0 deletions
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7
drivers/net/ethernet/broadcom/cnic.c
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@ -868,6 +868,8 @@ static void cnic_free_resc(struct cnic_dev *dev)
if (udev) { if (udev) {
udev->dev = NULL; udev->dev = NULL;
cp->udev = NULL; cp->udev = NULL;
if (udev->uio_dev == -1)
__cnic_free_uio_rings(udev);
} }
cnic_free_context(dev); 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) { list_for_each_entry(udev, &cnic_udev_list, list) {
if (udev->pdev == dev->pcidev) { if (udev->pdev == dev->pcidev) {
udev->dev = dev; udev->dev = dev;
if (__cnic_alloc_uio_rings(udev, pages)) {
udev->dev = NULL;
read_unlock(&cnic_dev_lock);
return -ENOMEM;
}
cp->udev = udev; cp->udev = udev;
read_unlock(&cnic_dev_lock); read_unlock(&cnic_dev_lock);
return 0; return 0;