Re: [PATCH v2] usb: host: pci_quirks: fix memory leak, by adding iounmap

From: Greg KH
Date: Fri Dec 04 2015 - 11:23:20 EST


On Wed, Dec 02, 2015 at 10:51:37PM +0530, Saurabh Sengar wrote:
> added iounmap inorder to free memory mapped to base before returning
>
> Signed-off-by: Saurabh Sengar <saurabh.truth@xxxxxxxxx>
> ---
> v2: changed logic a bit, because of recent patches pushed to usb-next
> drivers/usb/host/pci-quirks.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
> index 26cb8c8..2ac198c 100644
> --- a/drivers/usb/host/pci-quirks.c
> +++ b/drivers/usb/host/pci-quirks.c
> @@ -992,7 +992,7 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
> if ((ext_cap_offset + sizeof(val)) > len) {
> /* We're reading garbage from the controller */
> dev_warn(&pdev->dev, "xHCI controller failing to respond");
> - return;
> + goto hc_init;

Are you sure this is correct? That goto location then does a whole
bunch of things with the xhci controller that you just now determined is
failing to respond. I can't take this as-is, sorry.

greg k-h
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