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Input: cm109 - fix checking return value of usb_control_msg 

If successful, usb_control_msg returns the number of bytes transferred,
otherwise a negative error number.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
axel lin 2011-08-25 09:42:09 -07:00 committed by Dmitry Torokhov
parent 1fab84aa63
commit 7b727acc41
1 changed files with 1 additions and 1 deletions
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2
drivers/input/misc/cm109.c
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@ -475,7 +475,7 @@ static void cm109_toggle_buzzer_sync(struct cm109_dev *dev, int on)
le16_to_cpu(dev->ctl_req->wIndex), le16_to_cpu(dev->ctl_req->wIndex),
dev->ctl_data, dev->ctl_data,
USB_PKT_LEN, USB_CTRL_SET_TIMEOUT); USB_PKT_LEN, USB_CTRL_SET_TIMEOUT);
if (error && error != EINTR) if (error < 0 && error != -EINTR)
err("%s: usb_control_msg() failed %d", __func__, error); err("%s: usb_control_msg() failed %d", __func__, error);
} }