Merged revisions 8080 via svnmerge from

https://origsvn.digium.com/svn/dahdi/linux/trunk

........
  r8080 | sruffell | 2010-02-24 13:13:05 -0600 (Wed, 24 Feb 2010) | 4 lines
  
  wctdm24xxp, wcte12xp:  Abort attach if interface fails to come out of reset.
  
  If the reset bit never clears, then just assume we cannot talk to the board and
  error on the attach.  DAHDI-515.
........


git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/branches/2.2@8086 a0bf4364-ded3-4de4-8d8a-66a801d63aff

1 files changed, 18 insertions, 11 deletions

diff --git a/drivers/dahdi/voicebus/voicebus.c b/drivers/dahdi/voicebus/voicebus.c
index b77ccdb..dfe59be 100644
--- a/drivers/dahdi/voicebus/voicebus.c
+++ b/drivers/dahdi/voicebus/voicebus.c
@@ -738,8 +738,8 @@ vb_reset_interface(struct voicebus *vb)
 	} while ((reg & 0x00000001) && time_before(jiffies, timeout));
 
 	if (reg & 0x00000001) {
-		dev_warn(&vb->pdev->dev, "Hardware did not come out of reset "
-			 "within 100ms!");
+		dev_warn(&vb->pdev->dev, "Did not come out of reset "
+			 "within 100ms\n");
 		return -EIO;
 	}
 
@@ -1801,14 +1801,6 @@ voicebus_init(struct pci_dev *pdev, u32 framesize, const char *board_name,
 	vb->idle_vbb = dma_alloc_coherent(&vb->pdev->dev, vb->framesize,
 					  &vb->idle_vbb_dma_addr, GFP_KERNEL);
 
-	retval = vb_initialize_tx_descriptors(vb);
-	if (retval)
-		goto cleanup;
-
-	retval = vb_initialize_rx_descriptors(vb);
-	if (retval)
-		goto cleanup;
-
 	/* ----------------------------------------------------------------
 	   Configure the hardware interface.
 	   ---------------------------------------------------------------- */
@@ -1821,6 +1813,20 @@ voicebus_init(struct pci_dev *pdev, u32 framesize, const char *board_name,
 	pci_set_master(pdev);
 	vb_enable_io_access(vb);
 
+	if (vb_reset_interface(vb)) {
+		retval = -EIO;
+		dev_warn(&vb->pdev->dev, "Failed reset.\n");
+		goto cleanup;
+	}
+
+	retval = vb_initialize_tx_descriptors(vb);
+	if (retval)
+		goto cleanup;
+
+	retval = vb_initialize_rx_descriptors(vb);
+	if (retval)
+		goto cleanup;
+
 #if VOICEBUS_DEFERRED != TIMER
 	retval = request_irq(pdev->irq, vb_isr, DAHDI_IRQ_SHARED,
 			     board_name, vb);
@@ -1865,7 +1871,8 @@ cleanup:
 		pci_disable_device(vb->pdev);
 
 	kfree(vb);
-	WARN_ON(0 == retval);
+	if (0 == retval)
+		retval = -EIO;
 	return retval;
 }
 EXPORT_SYMBOL(voicebus_init);