diff options
| author | Dan Carpenter <error27@gmail.com> | 2011-03-20 14:09:50 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-04-14 02:44:05 +0400 |
| commit | 485707116b3949ab41e1aba8d74f45a7551e3a65 (patch) | |
| tree | b78a9ca59b2c2e930d61f96d94194ee66811fdc8 /drivers/usb/gadget/pch_udc.c | |
| parent | 9ab7927bb845cf2549110b19c212fe44a2bfbacb (diff) | |
| download | linux-485707116b3949ab41e1aba8d74f45a7551e3a65.tar.xz | |
usb: pch_udc: unlock on allocation failure
There was an unlock missing on the error path.
Also I did a small cleanup by changing ep->dev->lock for just dev->lock.
They're the same lock, but dev->lock is shorter and that's how it is
used for the spin_unlock_irqrestore() call.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget/pch_udc.c')
| -rw-r--r-- | drivers/usb/gadget/pch_udc.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c index 3e4b35e50c24..68dbcc3e4cc2 100644 --- a/drivers/usb/gadget/pch_udc.c +++ b/drivers/usb/gadget/pch_udc.c @@ -1608,7 +1608,7 @@ static int pch_udc_pcd_queue(struct usb_ep *usbep, struct usb_request *usbreq, return -EINVAL; if (!dev->driver || (dev->gadget.speed == USB_SPEED_UNKNOWN)) return -ESHUTDOWN; - spin_lock_irqsave(&ep->dev->lock, iflags); + spin_lock_irqsave(&dev->lock, iflags); /* map the buffer for dma */ if (usbreq->length && ((usbreq->dma == DMA_ADDR_INVALID) || !usbreq->dma)) { @@ -1625,8 +1625,10 @@ static int pch_udc_pcd_queue(struct usb_ep *usbep, struct usb_request *usbreq, DMA_FROM_DEVICE); } else { req->buf = kzalloc(usbreq->length, GFP_ATOMIC); - if (!req->buf) - return -ENOMEM; + if (!req->buf) { + retval = -ENOMEM; + goto probe_end; + } if (ep->in) { memcpy(req->buf, usbreq->buf, usbreq->length); req->dma = dma_map_single(&dev->pdev->dev, |