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    Subject[PATCH v9 01/20] USB: ehci-omap: Don't free gpios that we didn't request
    Date
    This driver does not request any gpios so don't free them.
    Fixes L3 bus error on multiple modprobe/rmmod of ehci_hcd
    with ehci-omap in use.

    Without this patch, EHCI will break on repeated insmod/rmmod
    of ehci_hcd for all OMAP2+ platforms that use EHCI and
    set 'phy_reset = true' in usbhs_omap_board_data.
    i.e.

    board-3430sdp.c: .phy_reset = true,
    board-3630sdp.c: .phy_reset = true,
    board-am3517crane.c: .phy_reset = true,
    board-am3517evm.c: .phy_reset = true,
    board-cm-t3517.c: .phy_reset = true,
    board-cm-t35.c: .phy_reset = true,
    board-devkit8000.c: .phy_reset = true,
    board-igep0020.c: .phy_reset = true,
    board-igep0020.c: .phy_reset = true,
    board-omap3beagle.c: .phy_reset = true,
    board-omap3evm.c: .phy_reset = true,
    board-omap3pandora.c: .phy_reset = true,
    board-omap3stalker.c: .phy_reset = true,
    board-omap3touchbook.c: .phy_reset = true,
    board-omap4panda.c: .phy_reset = false,
    board-overo.c: .phy_reset = true,
    board-zoom.c: .phy_reset = true,

    CC: Alan Stern <stern@rowland.harvard.edu>
    CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    CC: stable@vger.kernel.org

    Signed-off-by: Roger Quadros <rogerq@ti.com>
    Reviewed-by: Felipe Balbi <balbi@ti.com>
    Acked-by: Alan Stern <stern@rowland.harvard.edu>
    ---
    drivers/usb/host/ehci-omap.c | 8 --------
    1 files changed, 0 insertions(+), 8 deletions(-)

    diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
    index ac17a7c..e9d9b09 100644
    --- a/drivers/usb/host/ehci-omap.c
    +++ b/drivers/usb/host/ehci-omap.c
    @@ -288,7 +288,6 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev)
    {
    struct device *dev = &pdev->dev;
    struct usb_hcd *hcd = dev_get_drvdata(dev);
    - struct ehci_hcd_omap_platform_data *pdata = dev->platform_data;

    usb_remove_hcd(hcd);
    disable_put_regulator(dev->platform_data);
    @@ -298,13 +297,6 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev)
    pm_runtime_put_sync(dev);
    pm_runtime_disable(dev);

    - if (pdata->phy_reset) {
    - if (gpio_is_valid(pdata->reset_gpio_port[0]))
    - gpio_free(pdata->reset_gpio_port[0]);
    -
    - if (gpio_is_valid(pdata->reset_gpio_port[1]))
    - gpio_free(pdata->reset_gpio_port[1]);
    - }
    return 0;
    }

    --
    1.7.4.1


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