diff options
| author | Jonathan Corbet <corbet@lwn.net> | 2016-11-18 16:13:41 -0700 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2016-11-18 16:13:41 -0700 |
| commit | 917fef6f7ee8b2fe852692ac49771342bfef9433 (patch) | |
| tree | b5932aab90d449841803b6f8679a4564ca2a6eaf /drivers/media/usb/s2255/s2255drv.c | |
| parent | 0c9aa209579d41c9b8bf1fc39ce042bea2ec422d (diff) | |
| parent | bc33b0ca11e3df467777a4fa7639ba488c9d4911 (diff) | |
| download | linux-917fef6f7ee8b2fe852692ac49771342bfef9433.tar.gz | |
Merge tag 'v4.9-rc4' into sound
Bring in -rc4 patches so I can successfully merge the sound doc changes.
Diffstat (limited to 'drivers/media/usb/s2255/s2255drv.c')
| -rw-r--r-- | drivers/media/usb/s2255/s2255drv.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/media/usb/s2255/s2255drv.c b/drivers/media/usb/s2255/s2255drv.c index c3a0e87066eb..f7bb78c1873c 100644 --- a/drivers/media/usb/s2255/s2255drv.c +++ b/drivers/media/usb/s2255/s2255drv.c @@ -1901,19 +1901,30 @@ static long s2255_vendor_req(struct s2255_dev *dev, unsigned char Request, s32 TransferBufferLength, int bOut) { int r; + unsigned char *buf; + + buf = kmalloc(TransferBufferLength, GFP_KERNEL); + if (!buf) + return -ENOMEM; + if (!bOut) { r = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), Request, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, - Value, Index, TransferBuffer, + Value, Index, buf, TransferBufferLength, HZ * 5); + + if (r >= 0) + memcpy(TransferBuffer, buf, TransferBufferLength); } else { + memcpy(buf, TransferBuffer, TransferBufferLength); r = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), Request, USB_TYPE_VENDOR | USB_RECIP_DEVICE, - Value, Index, TransferBuffer, + Value, Index, buf, TransferBufferLength, HZ * 5); } + kfree(buf); return r; } |