From ce7e98ce9e8cc281fccf9ef3770eb17ed2623718 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Thu, 26 Jul 2007 18:41:30 +0100
Subject: [PATCH] --- yaml --- r: 63533 b: refs/heads/master c:
 6fdc99a224bd52020c602c3d4d57e5f8a75f6bb8 h: refs/heads/master i:   63531:
 ec881e18ea3d3d7684ba5cfdb670f6524e5bf027 v: v3

---
 [refs]                         | 2 +-
 trunk/drivers/ata/libata-sff.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 965e2f0e6f13..7ba83a3c196a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: dbf0c89c80e47a2a132048dcded0dcc2a59c74ad
+refs/heads/master: 6fdc99a224bd52020c602c3d4d57e5f8a75f6bb8
diff --git a/trunk/drivers/ata/libata-sff.c b/trunk/drivers/ata/libata-sff.c
index 6c289c7b1322..1cce2198baaf 100644
--- a/trunk/drivers/ata/libata-sff.c
+++ b/trunk/drivers/ata/libata-sff.c
@@ -573,6 +573,10 @@ int ata_pci_init_bmdma(struct ata_host *host)
 	struct pci_dev *pdev = to_pci_dev(gdev);
 	int i, rc;
 
+	/* No BAR4 allocation: No DMA */
+	if (pci_resource_start(pdev, 4) == 0)
+		return 0;
+
 	/* TODO: If we get no DMA mask we should fall back to PIO */
 	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)