aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/usb/core/devio.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@g5.osdl.org>2006-03-21 09:25:47 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-21 09:25:47 -0800
commit2bf2154c6bb5599e3ec3f73c34861a0b12aa839e (patch)
tree62691bd915e2e3c2e6648306d3fb893f7a1dc57e /drivers/usb/core/devio.c
parentMerge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6 (diff)
parent[PATCH] USB: omninet: fix up debugging comments (diff)
downloadlinux-dev-2bf2154c6bb5599e3ec3f73c34861a0b12aa839e.tar.xz
linux-dev-2bf2154c6bb5599e3ec3f73c34861a0b12aa839e.zip
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (81 commits) [PATCH] USB: omninet: fix up debugging comments [PATCH] USB serial: add navman driver [PATCH] USB: Fix irda-usb use after use [PATCH] USB: rtl8150 small fix [PATCH] USB: ftdi_sio: add Icom ID1 USB product and vendor ids [PATCH] USB: cp2101: add new device IDs [PATCH] USB: fix check_ctrlrecip to allow control transfers in state ADDRESS [PATCH] USB: vicam.c: fix a NULL pointer dereference [PATCH] USB: ZC0301 driver bugfix [PATCH] USB: add support for Creativelabs Silvercrest USB keyboard [PATCH] USB: storage: new unusual_devs.h entry: Mitsumi 7in1 Card Reader [PATCH] USB: storage: unusual_devs.h entry 0420:0001 [PATCH] USB: storage: another unusual_devs.h entry [PATCH] USB: storage: sandisk unusual_devices entry [PATCH] USB: fix initdata issue in isp116x-hcd [PATCH] USB: usbcore: usb_set_configuration oops (NULL ptr dereference) [PATCH] USB: usbcore: Don't assume a USB configuration includes any interfaces [PATCH] USB: ub 03 drop stall clearing [PATCH] USB: ub 02 remove diag [PATCH] USB: ub 01 remove first_open ...
Diffstat (limited to 'drivers/usb/core/devio.c')
-rw-r--r--drivers/usb/core/devio.c24
1 files changed, 10 insertions, 14 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 2b68998fe4b3..545da37afca7 100644
--- 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;