wctdm24xxp: FXS on-hook transmission timer incorrect.

The DAHDI_ONHOOKTRANSFER ioctl was incorrectly setting the ohttimer to 0. The
result was that an FXS port was leaving the on-hook transfer state before
finishing the transmission.

This was discovered while looking at why ./fxstest dtmfcid  was not able to
pass the DTMF callerid digits to an attached FXO port properly.

Fixes a regression introduced in r10167 "wctdm24xxp: Use interval for checking
FXS on hook transfer timer." [1], first released in 2.6.0.

[1] http://svnview.digium.com/svn/dahdi?view=revision&revision=10167

Signed-off-by: Shaun Ruffell <sruffell@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@10413 a0bf4364-ded3-4de4-8d8a-66a801d63aff

drivers/dahdi/wctdm24xxp/base.c

@@ -3727,14 +3727,15 @@ static int wctdm_ioctl(struct dahdi_chan *chan, unsigned int cmd, unsigned long
 
 		if (((fxs->lasttxhook & SLIC_LF_SETMASK) == SLIC_LF_ACTIVE_FWD) ||
 		    ((fxs->lasttxhook & SLIC_LF_SETMASK) == SLIC_LF_ACTIVE_REV)) {
+			int res;
 
-			x = set_lasttxhook_interruptible(wc, fxs,
+			res = set_lasttxhook_interruptible(wc, fxs,
 				(POLARITY_XOR(fxs) ?
 				SLIC_LF_OHTRAN_REV : SLIC_LF_OHTRAN_FWD),
 				&mod->sethook);
 
 			if (debug & DEBUG_CARD) {
-				if (x) {
+				if (res) {
 					dev_info(&wc->vb.pdev->dev,
 						 "Channel %d TIMEOUT: "
 						 "OnHookTransfer start\n",