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path: root/drivers/scsi/qedi
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Diffstat (limited to 'drivers/scsi/qedi')
-rw-r--r--drivers/scsi/qedi/qedi_main.c23
1 files changed, 11 insertions, 12 deletions
diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c
index 92775a8b74b1..997e3052a706 100644
--- a/drivers/scsi/qedi/qedi_main.c
+++ b/drivers/scsi/qedi/qedi_main.c
@@ -151,6 +151,11 @@ static int qedi_uio_close(struct uio_info *uinfo, struct inode *inode)
static void __qedi_free_uio_rings(struct qedi_uio_dev *udev)
{
+ if (udev->uctrl) {
+ free_page((unsigned long)udev->uctrl);
+ udev->uctrl = NULL;
+ }
+
if (udev->ll2_ring) {
free_page((unsigned long)udev->ll2_ring);
udev->ll2_ring = NULL;
@@ -169,7 +174,6 @@ static void __qedi_free_uio(struct qedi_uio_dev *udev)
__qedi_free_uio_rings(udev);
pci_dev_put(udev->pdev);
- kfree(udev->uctrl);
kfree(udev);
}
@@ -208,6 +212,11 @@ static int __qedi_alloc_uio_rings(struct qedi_uio_dev *udev)
if (udev->ll2_ring || udev->ll2_buf)
return rc;
+ /* Memory for control area. */
+ udev->uctrl = (void *)get_zeroed_page(GFP_KERNEL);
+ if (!udev->uctrl)
+ return -ENOMEM;
+
/* Allocating memory for LL2 ring */
udev->ll2_ring_size = QEDI_PAGE_SIZE;
udev->ll2_ring = (void *)get_zeroed_page(GFP_KERNEL | __GFP_COMP);
@@ -237,7 +246,6 @@ exit_alloc_ring:
static int qedi_alloc_uio_rings(struct qedi_ctx *qedi)
{
struct qedi_uio_dev *udev = NULL;
- struct qedi_uio_ctrl *uctrl = NULL;
int rc = 0;
list_for_each_entry(udev, &qedi_udev_list, list) {
@@ -258,21 +266,14 @@ static int qedi_alloc_uio_rings(struct qedi_ctx *qedi)
goto err_udev;
}
- uctrl = kzalloc(sizeof(*uctrl), GFP_KERNEL);
- if (!uctrl) {
- rc = -ENOMEM;
- goto err_uctrl;
- }
-
udev->uio_dev = -1;
udev->qedi = qedi;
udev->pdev = qedi->pdev;
- udev->uctrl = uctrl;
rc = __qedi_alloc_uio_rings(udev);
if (rc)
- goto err_uio_rings;
+ goto err_uctrl;
list_add(&udev->list, &qedi_udev_list);
@@ -283,8 +284,6 @@ static int qedi_alloc_uio_rings(struct qedi_ctx *qedi)
udev->rx_pkt = udev->ll2_buf + LL2_SINGLE_BUF_SIZE;
return 0;
- err_uio_rings:
- kfree(uctrl);
err_uctrl:
kfree(udev);
err_udev: