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SubjectRe: [PATCH] usnic: correctly check failed allocation
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On 10/15/2015 05:15 PM, Insu Yun wrote:
> Since ib_alloc_device returns allocated memory address, not error,
> it should be checked as IS_NULL, not IS_ERR_OR_NULL.
>
> Signed-off-by: Insu Yun <wuninsu@gmail.com>

Thanks, applied.

> ---
> drivers/infiniband/hw/usnic/usnic_ib_main.c | 9 ++++-----
> 1 file changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/infiniband/hw/usnic/usnic_ib_main.c b/drivers/infiniband/hw/usnic/usnic_ib_main.c
> index 34c49b8..cbc0514 100644
> --- a/drivers/infiniband/hw/usnic/usnic_ib_main.c
> +++ b/drivers/infiniband/hw/usnic/usnic_ib_main.c
> @@ -328,16 +328,15 @@ static void *usnic_ib_device_add(struct pci_dev *dev)
> netdev = pci_get_drvdata(dev);
>
> us_ibdev = (struct usnic_ib_dev *)ib_alloc_device(sizeof(*us_ibdev));
> - if (IS_ERR_OR_NULL(us_ibdev)) {
> + if (!us_ibdev) {
> usnic_err("Device %s context alloc failed\n",
> netdev_name(pci_get_drvdata(dev)));
> - return ERR_PTR(us_ibdev ? PTR_ERR(us_ibdev) : -EFAULT);
> + return ERR_PTR(-EFAULT);
> }
>
> us_ibdev->ufdev = usnic_fwd_dev_alloc(dev);
> - if (IS_ERR_OR_NULL(us_ibdev->ufdev)) {
> - usnic_err("Failed to alloc ufdev for %s with err %ld\n",
> - pci_name(dev), PTR_ERR(us_ibdev->ufdev));
> + if (!us_ibdev->ufdev) {
> + usnic_err("Failed to alloc ufdev for %s\n", pci_name(dev));
> goto err_dealloc;
> }
>
>


--
Doug Ledford <dledford@redhat.com>
GPG KeyID: 0E572FDD


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