[PATCH 3/5] fbdev: savage: Convert to managed PCI and ioremap API

From: Shixiong Ou <[email protected]>

Fix missing pci_disable_device() in probe and remove.

Use pcim_enable_device(), pcim_request_all_regions(),
devm_ioremap() and devm_ioremap_wc() to replace manual resource
management. Remove all pci_release_regions() and iounmap() calls.
Merge failed_init label into failed_enable.

Signed-off-by: Shixiong Ou <[email protected]>
---
 drivers/video/fbdev/savage/savagefb_driver.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/video/fbdev/savage/savagefb_driver.c b/drivers/video/fbdev/savage/savagefb_driver.c
index 7789196d2eb5..56ff3c50cd29 100644
--- a/drivers/video/fbdev/savage/savagefb_driver.c
+++ b/drivers/video/fbdev/savage/savagefb_driver.c
@@ -1728,7 +1728,7 @@ static int savage_map_mmio(struct fb_info *info)
 
 	par->mmio.len = SAVAGE_NEWMMIO_REGSIZE;
 
-	par->mmio.vbase = ioremap(par->mmio.pbase, par->mmio.len);
+	par->mmio.vbase = devm_ioremap(&par->pcidev->dev, par->mmio.pbase, par->mmio.len);
 	if (!par->mmio.vbase) {
 		printk("savagefb: unable to map memory mapped IO\n");
 		return -ENOMEM;
@@ -1755,7 +1755,6 @@ static void savage_unmap_mmio(struct fb_info *info)
 	savage_disable_mmio(par);
 
 	if (par->mmio.vbase) {
-		iounmap(par->mmio.vbase);
 		par->mmio.vbase = NULL;
 	}
 }
@@ -1774,7 +1773,7 @@ static int savage_map_video(struct fb_info *info, int video_len)
 
 	par->video.pbase = pci_resource_start(par->pcidev, resource);
 	par->video.len   = video_len;
-	par->video.vbase = ioremap_wc(par->video.pbase, par->video.len);
+	par->video.vbase = devm_ioremap_wc(&par->pcidev->dev, par->video.pbase, par->video.len);
 
 	if (!par->video.vbase) {
 		printk("savagefb: unable to map screen memory\n");
@@ -1802,7 +1801,6 @@ static void savage_unmap_video(struct fb_info *info)
 
 	if (par->video.vbase) {
 		arch_phys_wc_del(par->video.wc_cookie);
-		iounmap(par->video.vbase);
 		par->video.vbase = NULL;
 		info->screen_base = NULL;
 	}
@@ -2188,11 +2186,12 @@ static int savagefb_probe(struct pci_dev *dev, const struct pci_device_id *id)
 		return -ENOMEM;
 	par = info->par;
 	mutex_init(&par->open_lock);
-	err = pci_enable_device(dev);
+	err = pcim_enable_device(dev);
 	if (err)
 		goto failed_enable;
 
-	if ((err = pci_request_regions(dev, "savagefb"))) {
+	err = pcim_request_all_regions(dev, "savagefb");
+	if (err) {
 		printk(KERN_ERR "cannot request PCI regions\n");
 		goto failed_enable;
 	}
@@ -2200,7 +2199,7 @@ static int savagefb_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	err = -ENOMEM;
 
 	if ((err = savage_init_fb_info(info, dev, id)))
-		goto failed_init;
+		goto failed_enable;
 
 	err = savage_map_mmio(info);
 	if (err)
@@ -2331,8 +2330,6 @@ static int savagefb_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	savage_unmap_mmio(info);
  failed_mmio:
 	kfree(info->pixmap.addr);
- failed_init:
-	pci_release_regions(dev);
  failed_enable:
 	framebuffer_release(info);
 
@@ -2355,7 +2352,6 @@ static void savagefb_remove(struct pci_dev *dev)
 		savage_unmap_video(info);
 		savage_unmap_mmio(info);
 		kfree(info->pixmap.addr);
-		pci_release_regions(dev);
 		framebuffer_release(info);
 	}
 }
-- 
2.25.1


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