diff options
| author | Ingo Molnar <[email protected]> | 2017-08-26 09:19:13 +0200 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2017-08-26 09:19:13 +0200 |
| commit | 413d63d71b222108d19703f3fd5cf9108652a730 (patch) | |
| tree | 4680de6aebb6430dc5f3d9327f86d65149e6b5ae /drivers/net/irda/mcs7780.c | |
| parent | d6c8103b0265d8db30e20e948a4f06382bbdaea7 (diff) | |
| parent | 90a6cd503982bfd33ce8c70eb49bd2dd33bc6325 (diff) | |
Merge branch 'linus' into x86/mm to pick up fixes and to fix conflicts
Conflicts:
arch/x86/kernel/head64.c
arch/x86/mm/mmap.c
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'drivers/net/irda/mcs7780.c')
| -rw-r--r-- | drivers/net/irda/mcs7780.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/net/irda/mcs7780.c b/drivers/net/irda/mcs7780.c index 6f6ed75b63c9..765de3bedb88 100644 --- a/drivers/net/irda/mcs7780.c +++ b/drivers/net/irda/mcs7780.c @@ -141,9 +141,19 @@ static int mcs_set_reg(struct mcs_cb *mcs, __u16 reg, __u16 val) static int mcs_get_reg(struct mcs_cb *mcs, __u16 reg, __u16 * val) { struct usb_device *dev = mcs->usbdev; - int ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ, - MCS_RD_RTYPE, 0, reg, val, 2, - msecs_to_jiffies(MCS_CTRL_TIMEOUT)); + void *dmabuf; + int ret; + + dmabuf = kmalloc(sizeof(__u16), GFP_KERNEL); + if (!dmabuf) + return -ENOMEM; + + ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ, + MCS_RD_RTYPE, 0, reg, dmabuf, 2, + msecs_to_jiffies(MCS_CTRL_TIMEOUT)); + + memcpy(val, dmabuf, sizeof(__u16)); + kfree(dmabuf); return ret; } |