From 6d75cceddfdba2bc381699d985f1a22c1ea5f8f7 Mon Sep 17 00:00:00 2001
From: Maciej Sosnowski <maciej.sosnowski@intel.com>
Date: Thu, 26 Feb 2009 11:04:54 +0100
Subject: [PATCH] --- yaml --- r: 132061 b: refs/heads/master c:
 8b794b141c633083408d0bfb2229b3406d0ebf99 h: refs/heads/master i:   132059:
 6a2f295b750426779a3b4c82b113029c9ef5bbfb v: v3

---
 [refs]                       | 2 +-
 trunk/drivers/dma/ioat_dma.c | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 369f07e96190..4b119d8a9231 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ea9c717d0148d4194f9bd04ecfa6b59b20fc0a08
+refs/heads/master: 8b794b141c633083408d0bfb2229b3406d0ebf99
diff --git a/trunk/drivers/dma/ioat_dma.c b/trunk/drivers/dma/ioat_dma.c
index 879f4a06e3ca..9012da7908f5 100644
--- a/trunk/drivers/dma/ioat_dma.c
+++ b/trunk/drivers/dma/ioat_dma.c
@@ -1659,6 +1659,13 @@ struct ioatdma_device *ioat_dma_probe(struct pci_dev *pdev,
 		" %d channels, device version 0x%02x, driver version %s\n",
 		device->common.chancnt, device->version, IOAT_DMA_VERSION);
 
+	if (!device->common.chancnt) {
+		dev_err(&device->pdev->dev,
+			"Intel(R) I/OAT DMA Engine problem found: "
+			"zero channels detected\n");
+		goto err_setup_interrupts;
+	}
+
 	err = ioat_dma_setup_interrupts(device);
 	if (err)
 		goto err_setup_interrupts;