[PATCH] tgafb: switch to framebuffer_alloc()
This is a set of changes to update the driver to the framebuffer_alloc() API. Included, there is also a fix to a memory leak due to the colour map allocation not being freed upon driver's removal. Aside from the fix there are no functional changes. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: James Simmons <jsimmons@infradead.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -1342,14 +1342,10 @@ tgafb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
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TGA_24PLUSZ_FB_OFFSET
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};
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struct all_info {
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struct fb_info info;
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struct tga_par par;
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u32 pseudo_palette[16];
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} *all;
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void __iomem *mem_base;
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unsigned long bar0_start, bar0_len;
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struct fb_info *info;
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struct tga_par *par;
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u8 tga_type;
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int ret;
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@ -1360,13 +1356,14 @@ tgafb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
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}
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/* Allocate the fb and par structures. */
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all = kmalloc(sizeof(*all), GFP_KERNEL);
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if (!all) {
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info = framebuffer_alloc(sizeof(struct tga_par), &pdev->dev);
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if (!info) {
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printk(KERN_ERR "tgafb: Cannot allocate memory\n");
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return -ENOMEM;
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}
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memset(all, 0, sizeof(*all));
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pci_set_drvdata(pdev, all);
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par = info->par;
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pci_set_drvdata(pdev, info);
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/* Request the mem regions. */
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bar0_start = pci_resource_start(pdev, 0);
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@ -1386,25 +1383,23 @@ tgafb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
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/* Grab info about the card. */
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tga_type = (readl(mem_base) >> 12) & 0x0f;
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all->par.pdev = pdev;
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all->par.tga_mem_base = mem_base;
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all->par.tga_fb_base = mem_base + fb_offset_presets[tga_type];
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all->par.tga_regs_base = mem_base + TGA_REGS_OFFSET;
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all->par.tga_type = tga_type;
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pci_read_config_byte(pdev, PCI_REVISION_ID, &all->par.tga_chip_rev);
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par->pdev = pdev;
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par->tga_mem_base = mem_base;
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par->tga_fb_base = mem_base + fb_offset_presets[tga_type];
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par->tga_regs_base = mem_base + TGA_REGS_OFFSET;
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par->tga_type = tga_type;
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pci_read_config_byte(pdev, PCI_REVISION_ID, &par->tga_chip_rev);
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/* Setup framebuffer. */
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all->info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
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info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
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FBINFO_HWACCEL_IMAGEBLIT | FBINFO_HWACCEL_FILLRECT;
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all->info.fbops = &tgafb_ops;
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all->info.screen_base = all->par.tga_fb_base;
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all->info.par = &all->par;
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all->info.pseudo_palette = all->pseudo_palette;
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info->fbops = &tgafb_ops;
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info->screen_base = par->tga_fb_base;
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info->pseudo_palette = (void *)(par + 1);
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/* This should give a reasonable default video mode. */
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ret = fb_find_mode(&all->info.var, &all->info, mode_option,
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NULL, 0, NULL,
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ret = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL,
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tga_type == TGA_TYPE_8PLANE ? 8 : 32);
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if (ret == 0 || ret == 4) {
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printk(KERN_ERR "tgafb: Could not find valid video mode\n");
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@ -1412,29 +1407,28 @@ tgafb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
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goto err1;
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}
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if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
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if (fb_alloc_cmap(&info->cmap, 256, 0)) {
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printk(KERN_ERR "tgafb: Could not allocate color map\n");
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ret = -ENOMEM;
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goto err1;
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}
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tgafb_set_par(&all->info);
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tgafb_init_fix(&all->info);
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tgafb_set_par(info);
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tgafb_init_fix(info);
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all->info.device = &pdev->dev;
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if (register_framebuffer(&all->info) < 0) {
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if (register_framebuffer(info) < 0) {
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printk(KERN_ERR "tgafb: Could not register framebuffer\n");
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ret = -EINVAL;
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goto err1;
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}
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printk(KERN_INFO "tgafb: DC21030 [TGA] detected, rev=0x%02x\n",
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all->par.tga_chip_rev);
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par->tga_chip_rev);
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printk(KERN_INFO "tgafb: at PCI bus %d, device %d, function %d\n",
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pdev->bus->number, PCI_SLOT(pdev->devfn),
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PCI_FUNC(pdev->devfn));
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printk(KERN_INFO "fb%d: %s frame buffer device at 0x%lx\n",
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all->info.node, all->info.fix.id, bar0_start);
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info->node, info->fix.id, bar0_start);
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return 0;
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@ -1443,7 +1437,7 @@ tgafb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
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iounmap(mem_base);
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release_mem_region(bar0_start, bar0_len);
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err0:
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kfree(all);
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framebuffer_release(info);
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return ret;
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}
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@ -1456,10 +1450,11 @@ tgafb_pci_unregister(struct pci_dev *pdev)
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if (!info)
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return;
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unregister_framebuffer(info);
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fb_dealloc_cmap(&info->cmap);
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iounmap(par->tga_mem_base);
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release_mem_region(pci_resource_start(pdev, 0),
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pci_resource_len(pdev, 0));
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kfree(info);
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framebuffer_release(info);
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}
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#ifdef MODULE
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