Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git

[sfrench/cifs-2.6.git] / drivers / usb / core / devio.c

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 2b68998fe4b34fd0809f1dab9b4f078f7243306f..545da37afca7bdec6f464d547d575f02570d10cc 100644 (file)
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -134,26 +134,21 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes, l
        }
 
        if (pos < sizeof(struct usb_device_descriptor)) {
-               struct usb_device_descriptor *desc = kmalloc(sizeof(*desc), GFP_KERNEL);
-               if (!desc) {
-                       ret = -ENOMEM;
-                       goto err;
-               }
-               memcpy(desc, &dev->descriptor, sizeof(dev->descriptor));
-               le16_to_cpus(&desc->bcdUSB);
-               le16_to_cpus(&desc->idVendor);
-               le16_to_cpus(&desc->idProduct);
-               le16_to_cpus(&desc->bcdDevice);
+               struct usb_device_descriptor temp_desc ; /* 18 bytes - fits on the stack */
+
+               memcpy(&temp_desc, &dev->descriptor, sizeof(dev->descriptor));
+               le16_to_cpus(&temp_desc.bcdUSB);
+               le16_to_cpus(&temp_desc.idVendor);
+               le16_to_cpus(&temp_desc.idProduct);
+               le16_to_cpus(&temp_desc.bcdDevice);
 
                len = sizeof(struct usb_device_descriptor) - pos;
                if (len > nbytes)
                        len = nbytes;
-               if (copy_to_user(buf, ((char *)desc) + pos, len)) {
-                       kfree(desc);
+               if (copy_to_user(buf, ((char *)&temp_desc) + pos, len)) {
                        ret = -EFAULT;
                        goto err;
                }
-               kfree(desc);
 
                *ppos += len;
                buf += len;
@@ -498,7 +493,8 @@ static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype, unsig
 {
        int ret = 0;
 
-       if (ps->dev->state != USB_STATE_CONFIGURED)
+       if (ps->dev->state != USB_STATE_ADDRESS
+        && ps->dev->state != USB_STATE_CONFIGURED)
                return -EHOSTUNREACH;
        if (USB_TYPE_VENDOR == (USB_TYPE_MASK & requesttype))
                return 0;