pci: use pci_ioremap_bar() in drivers/video

Use the newly introduced pci_ioremap_bar() function in drivers/video.
pci_ioremap_bar() just takes a pci device and a bar number, with the goal
of making it really hard to get wrong, while also having a central place
to stick sanity checks.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/geode/gxfb_core.c b/drivers/video/geode/gxfb_core.c
index de2b8f9..4841189 100644
--- a/drivers/video/geode/gxfb_core.c
+++ b/drivers/video/geode/gxfb_core.c
@@ -242,23 +242,21 @@
 	ret = pci_request_region(dev, 3, "gxfb (video processor)");
 	if (ret < 0)
 		return ret;
-	par->vid_regs = ioremap(pci_resource_start(dev, 3),
-				pci_resource_len(dev, 3));
+	par->vid_regs = pci_ioremap_bar(dev, 3);
 	if (!par->vid_regs)
 		return -ENOMEM;
 
 	ret = pci_request_region(dev, 2, "gxfb (display controller)");
 	if (ret < 0)
 		return ret;
-	par->dc_regs = ioremap(pci_resource_start(dev, 2), pci_resource_len(dev, 2));
+	par->dc_regs = pci_ioremap_bar(dev, 2);
 	if (!par->dc_regs)
 		return -ENOMEM;
 
 	ret = pci_request_region(dev, 1, "gxfb (graphics processor)");
 	if (ret < 0)
 		return ret;
-	par->gp_regs = ioremap(pci_resource_start(dev, 1),
-	pci_resource_len(dev, 1));
+	par->gp_regs = pci_ioremap_bar(dev, 1);
 
 	if (!par->gp_regs)
 		return -ENOMEM;