On Thu, Jan 15, 2015 at 12:08:40AM +0300, Dan Carpenter wrote:
> The code here is checking for IS_ERR() when request_mem_region() only
> returns NULL on error and never an ERR_PTR.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>
> diff --git a/drivers/mcb/mcb-pci.c b/drivers/mcb/mcb-pci.c
> index 5e1bd5d..2d6524a 100644
> --- a/drivers/mcb/mcb-pci.c
> +++ b/drivers/mcb/mcb-pci.c
> @@ -56,9 +56,9 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>
> res = request_mem_region(priv->mapbase, CHAM_HEADER_SIZE,
> KBUILD_MODNAME);
> - if (IS_ERR(res)) {
> + if (!res) {
> dev_err(&pdev->dev, "Failed to request PCI memory\n");
> - ret = PTR_ERR(res);
> + ret = -EBUSY;
> goto err_start;
> }
>
Applied to mcb-next, thanks.
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