Message ID | Pine.LNX.4.64.1005261754560.23743@ask.diku.dk |
---|---|
State | Accepted, archived |
Delegated to: | David Miller |
Headers | show |
From: Julia Lawall <julia@diku.dk> Date: Wed, 26 May 2010 17:55:10 +0200 (CEST) > From: Julia Lawall <julia@diku.dk> > > Add a spin_unlock missing on the error path. The return value of write_reg > seems to be completely ignored, so it seems that the lock should be > released in every case. > > The semantic match that finds this problem is as follows: > (http://coccinelle.lip6.fr/) ... > Signed-off-by: Julia Lawall <julia@diku.dk> Applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/isdn/hardware/mISDN/hfcsusb.c b/drivers/isdn/hardware/mISDN/hfcsusb.c index b3b7e28..8700474 100644 --- a/drivers/isdn/hardware/mISDN/hfcsusb.c +++ b/drivers/isdn/hardware/mISDN/hfcsusb.c @@ -97,8 +97,10 @@ static int write_reg(struct hfcsusb *hw, __u8 reg, __u8 val) hw->name, __func__, reg, val); spin_lock(&hw->ctrl_lock); - if (hw->ctrl_cnt >= HFC_CTRL_BUFSIZE) + if (hw->ctrl_cnt >= HFC_CTRL_BUFSIZE) { + spin_unlock(&hw->ctrl_lock); return 1; + } buf = &hw->ctrl_buff[hw->ctrl_in_idx]; buf->hfcs_reg = reg; buf->reg_val = val;