usb: host: ehci-sys: delete useless bus_to_hcd conversion

[ Upstream commit 0521cfd06e1ebcd575e7ae36aab068b38df23850 ]

The ehci platform device's drvdata is the pointer of struct usb_hcd
already, so we doesn't need to call bus_to_hcd conversion again.

Cc: <stable@vger.kernel.org>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

diff --git a/drivers/usb/host/ehci-sysfs.c b/drivers/usb/host/ehci-sysfs.c
index f6459dfb6f54fd1a08c2780dd804a906ccca539b..94054dad7710da8648ef65e8cd8fe0d1680c54ce 100644 (file)
--- a/drivers/usb/host/ehci-sysfs.c
+++ b/drivers/usb/host/ehci-sysfs.c
@@ -29,7 +29,7 @@ static ssize_t show_companion(struct device *dev,
        int                     count = PAGE_SIZE;
        char                    *ptr = buf;
 
-       ehci = hcd_to_ehci(bus_to_hcd(dev_get_drvdata(dev)));
+       ehci = hcd_to_ehci(dev_get_drvdata(dev));
        nports = HCS_N_PORTS(ehci->hcs_params);
 
        for (index = 0; index < nports; ++index) {
@@ -54,7 +54,7 @@ static ssize_t store_companion(struct device *dev,
        struct ehci_hcd         *ehci;
        int                     portnum, new_owner;
 
-       ehci = hcd_to_ehci(bus_to_hcd(dev_get_drvdata(dev)));
+       ehci = hcd_to_ehci(dev_get_drvdata(dev));
        new_owner = PORT_OWNER;         /* Owned by companion */
        if (sscanf(buf, "%d", &portnum) != 1)
                return -EINVAL;
@@ -85,7 +85,7 @@ static ssize_t show_uframe_periodic_max(struct device *dev,
        struct ehci_hcd         *ehci;
        int                     n;
 
-       ehci = hcd_to_ehci(bus_to_hcd(dev_get_drvdata(dev)));
+       ehci = hcd_to_ehci(dev_get_drvdata(dev));
        n = scnprintf(buf, PAGE_SIZE, "%d\n", ehci->uframe_periodic_max);
        return n;
 }
@@ -101,7 +101,7 @@ static ssize_t store_uframe_periodic_max(struct device *dev,
        unsigned long           flags;
        ssize_t                 ret;
 
-       ehci = hcd_to_ehci(bus_to_hcd(dev_get_drvdata(dev)));
+       ehci = hcd_to_ehci(dev_get_drvdata(dev));
        if (kstrtouint(buf, 0, &uframe_periodic_max) < 0)
                return -EINVAL;