On Oct 15, 2015, at 11:27 AM, Insu Yun <wuni...@gmail.com> 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 <wuni...@gmail.com>
> ---
> drivers/infiniband/hw/usnic/usnic_ib_main.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
There's a typo in the subject ("corretly"-->"correctly").
Out of curiosity, what led you to spot this? General code inspection or did
this come out of some tool?
> diff --git a/drivers/infiniband/hw/usnic/usnic_ib_main.c
> b/drivers/infiniband/hw/usnic/usnic_ib_main.c
> index 34c49b8..7c5f602 100644
> --- a/drivers/infiniband/hw/usnic/usnic_ib_main.c
> +++ b/drivers/infiniband/hw/usnic/usnic_ib_main.c
> @@ -328,14 +328,14 @@ 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);
I think this can become:
return ERR_PTR(-EFAULT);
> }
>
> us_ibdev->ufdev = usnic_fwd_dev_alloc(dev);
> - if (IS_ERR_OR_NULL(us_ibdev->ufdev)) {
> + if (!us_ibdev->ufdev) {
> usnic_err("Failed to alloc ufdev for %s with err %ld\n",
> pci_name(dev), PTR_ERR(us_ibdev->ufdev));
This PTR_ERR and message make less sense now.
-Dave
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