import PULS_20180308

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / usb / core / devio.c

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index c88c4fb9459dfbc94119e8a0590a924fa5868f0c..5297a199e41d7e7f970976d8461020a5bfa88a98 100644 (file)
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -742,6 +742,22 @@ static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype,
                if ((index & ~USB_DIR_IN) == 0)
                        return 0;
                ret = findintfep(ps->dev, index);
+               if (ret < 0) {
+                       /*
+                        * Some not fully compliant Win apps seem to get
+                        * index wrong and have the endpoint number here
+                        * rather than the endpoint address (with the
+                        * correct direction). Win does let this through,
+                        * so we'll not reject it here but leave it to
+                        * the device to not break KVM. But we warn.
+                        */
+                       ret = findintfep(ps->dev, index ^ 0x80);
+                       if (ret >= 0)
+                               dev_info(&ps->dev->dev,
+                                       "%s: process %i (%s) requesting ep %02x but needs %02x\n",
+                                       __func__, task_pid_nr(current),
+                                       current->comm, index, index ^ 0x80);
+               }
                if (ret >= 0)
                        ret = checkintf(ps, ret);
                break;
@@ -824,6 +840,10 @@ static int usbdev_open(struct inode *inode, struct file *file)
        usb_unlock_device(dev);
        snoop(&dev->dev, "opened by process %d: %s\n", task_pid_nr(current),
                        current->comm);
+
+       MYDBG("opened by process %d: %s\n", task_pid_nr(current),
+                       current->comm); 
+
        return ret;
 
  out_unlock_device:
@@ -1089,10 +1109,11 @@ static int proc_getdriver(struct dev_state *ps, void __user *arg)
 
 static int proc_connectinfo(struct dev_state *ps, void __user *arg)
 {
-       struct usbdevfs_connectinfo ci = {
-               .devnum = ps->dev->devnum,
-               .slow = ps->dev->speed == USB_SPEED_LOW
-       };
+       struct usbdevfs_connectinfo ci;
+
+       memset(&ci, 0, sizeof(ci));
+       ci.devnum = ps->dev->devnum;
+       ci.slow = ps->dev->speed == USB_SPEED_LOW;
 
        if (copy_to_user(arg, &ci, sizeof(ci)))
                return -EFAULT;